Lafayette LXEdge vs Stoelting CPS: Software Comparison

Lafayette Instrument Company — LXEdge

Lafayette Instrument Company was founded in 1947 in Lafayette, Indiana, by Max Wastl, a German immigrant who studied Electrical Engineering at Purdue University [1]Verified Lafayette Instrument Company — Our Story (Official Company History)
Confirms Lafayette was founded in 1947 by Max Wastl, a German immigrant who studied Electrical Engineering at Purdue University, with acquisition of Limestone Technologies in 2022 and PEAK launch in 2016.. The company initially focused on physiological recording instruments for schools and university laboratories [2]Verified Lafayette Instrument Company — Harvard Collection of Historical Scientific Instruments
Confirms Lafayette Instrument Company was founded in 1947 by Max Wastl in Lafayette, Indiana, and initially produced psychophysiological instrumentation for schools and university laboratories.. In 1972, Lafayette produced its first dedicated polygraph instrument, leveraging its deep expertise in physiological measurement [3]Verified Lafayette Instrument Company — Company News
Confirms first polygraph instrument in 1972, Tom Smith joining in 1967, PEAK launch in 2016, and worldwide distribution to over 80 countries.. Since then, Lafayette has grown into what the company describes as the world's leading manufacturer of polygraph instrumentation and equipment, distributing systems to private examiners, government, and military organizations worldwide [4]Verified Lafayette Instrument Company — Official Corporate Website
Confirms Lafayette's position as world's leading manufacturer of polygraph instrumentation, 75+ years of operation, and PEAK training center mission..

Lafayette's current flagship software platform, LXEdge, represents the culmination of decades of iterative development that began with the LX2000 and continued through the LX4000 series and LXSoftware [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. LXEdge is compatible with the Lafayette LX6, the newer LX7, and the Limestone Paragon series hardware — significantly expanding its ecosystem since Lafayette acquired Limestone Technologies Inc. in 2022 [6]Verified LX6 Polygraph System Product Page
Confirms LXEdge compatibility with LX6, LX7, and Limestone Paragon series hardware, 10-channel capability, and leasing options.. During 2016–2017, Lafayette supported customers from over 80 countries and every US state [3]Verified Lafayette Instrument Company — Company News
Confirms first polygraph instrument in 1972, Tom Smith joining in 1967, PEAK launch in 2016, and worldwide distribution to over 80 countries..

Lafayette maintains a significant presence in federal and government polygraph programs. The company's PEAK Credibility Assessment Training Center, launched in 2016 and headquartered in Cape Coral, Florida, provides advanced credibility assessment training to both public and private sector professionals [7]Verified PEAK Credibility Assessment Training Center
Confirms PEAK CATC launched in 2016, headquartered in Cape Coral, Florida, under Director Ben Blalock.. For a deeper look at the hardware powering this software, see our LX7-S Polygraph System: Complete Technical Review 2025. Examiners interested in Lafayette's earlier hardware can review our guide to the LX4000 & LX5000 Polygraph Systems.

Stoelting Company — CPS Fusion & CPS Elite

Stoelting Company has an even longer pedigree in scientific instrumentation. Founded in 1886 as the Chicago Laboratory Supply and Scale Company by Christian Hans Stoelting, the company has been supplying the world's scientists with high-quality instruments for nearly 140 years [8]Verified Stoelting Company — Wikipedia
Confirms Stoelting founded in 1886 as Chicago Laboratory Supply and Scale Co. by Christian Hans Stoelting, principal provider of American psychology apparatus from 1903-1943.. From 1903 to 1943, Stoelting was nearly unchallenged as the principal provider of the material culture of American psychology [9]Verified Stoelting Company — About Us (Neuroscience Division)
Confirms Stoelting was nearly unchallenged as principal provider of material culture of American psychology from 1903 to 1943, headquartered in Wood Dale, Illinois..

Stoelting created their first Cardio-Pneumo Polygraph in 1935, and since 1930, the company has been on the forefront of design and manufacture of polygraph instrumentation [10]Verified Stoelting Company — Polygraph Division History
Confirms first Cardio-Pneumo Polygraph in 1935, Reid Polygraph in 1951, Deceptograph standardized by US military in 1958, Polyscribe in 1974, Computer Aided Polygraph System in 1988.. The company produced the iconic Stoelting Deceptograph — one of the earliest commercial polygraph instruments, now held in the collection of the Smithsonian National Museum of American History [11]Verified Smithsonian National Museum of American History — Stoelting Deceptograph
Confirms the Stoelting Deceptograph is held in the Smithsonian collection as a historically significant polygraph instrument.. Key milestones in Stoelting's polygraph history include the Reid Polygraph in 1951, the Stoelting Deceptograph being standardized by the US military in 1958, the world's first all-electronic polygraph (the Polyscribe) in 1974, and the landmark Computer Aided Polygraph System in 1988 that ushered in the digital age [10]Verified Stoelting Company — Polygraph Division History
Confirms first Cardio-Pneumo Polygraph in 1935, Reid Polygraph in 1951, Deceptograph standardized by US military in 1958, Polyscribe in 1974, Computer Aided Polygraph System in 1988..

The current CPS Elite hardware — Stoelting's fourth-generation Computerized Polygraph System — is paired with CPS Fusion software and has replaced the earlier CPSpro [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. The CPSpro has been formally discontinued and replaced with the Elite [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations.. For a comprehensive look at the Stoelting product ecosystem, visit our guide to The Stoelting Company: 140 Years of Polygraph Innovation.

Market Context

The professional polygraph software market is effectively dominated by these two manufacturers. While other instruments exist — including legacy Axciton systems, newer entrants like the P.O.L.A.R. instrument, and fundamentally different paradigms like EyeDetect from Converus — the overwhelming majority of professional psychophysiological detection of deception (PDD) examinations in North America and much of the world are conducted using either Lafayette or Stoelting platforms. This makes the choice between them one of the most consequential equipment decisions an examiner faces.

Research consistently demonstrates that modern computerized polygraph testing achieves strong accuracy rates. The largest meta-analysis ever conducted on the Comparison Question Test, analyzing 138 datasets, found a significant meta-analytic effect size of 0.69 including inconclusives, with motivation level showing a positive linear relationship with accuracy [14]Verified A Comprehensive Meta-Analysis of the Comparison Question Polygraph Test
The largest CQT meta-analysis (138 datasets), found meta-analytic effect size of 0.69 including inconclusives, positive relationship between motivation and accuracy.. Additional research has shown that CQT accuracy exceeds 85% across studies, with important moderator variables including examiner training and testing protocols [15]Verified A Meta-Analysis of the Comparison Question Polygraph Test: Moderator Effects
Found overall CQT accuracy estimates above 85% across studies, identified important moderator variables including examiner training and testing protocols.. Both platforms discussed here serve as the instruments through which these validated testing protocols are administered. For examiners evaluating their purchase options holistically, see our How to Choose the Right Polygraph System: Buyer's Guide.

LXEdge: Streamlined and Structured

The LXEdge interface follows a linear workflow model that guides the examiner through each phase of the examination in a predetermined sequence. Upon launching the application, the examiner creates a new case file (called a Polygraph File, or PF), enters examinee demographics, defines the test format and question sequence, and then proceeds to chart collection [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. This step-by-step structure minimizes the possibility of skipping critical steps — a design philosophy that reflects the platform's origins in standardized federal testing environments where adherence to protocol is paramount.

LXEdge offers many of the key features of its predecessor LXSoftware with major updates to improve the efficiency of the examination process [6]Verified LX6 Polygraph System Product Page
Confirms LXEdge compatibility with LX6, LX7, and Limestone Paragon series hardware, 10-channel capability, and leasing options.. The main chart display presents physiological data in vertically stacked channel format with respiration, electrodermal activity (EDA), cardiovascular activity, and motion sensor data displayed in separate, clearly labeled tracks. The examiner can select from ESS, three-position, and seven-position scoring methods directly in the settings [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. Navigation is organized around the PF structure, with intuitive access to chart collection, chart analysis, scoring, and report generation.

One area where LXEdge excels is its chart marking and annotation system. Examiners can mark artifacts, add text annotations to specific chart segments, and flag individual chart presentations for inclusion or exclusion in scoring [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. These annotations are preserved in the case file and carry through to the final report, creating a documented audit trail that meets quality assurance standards required by federal agencies and APA professional standards. LXEdge also features text-to-speech functionality for reading questions aloud during chart collection and supports video recording of the examination with automatic synchronization to chart playback [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. Understanding the importance of proper data collection, examiners should also review the Polygraph Reaction Window: 10-35 Second Scoring Period to ensure accurate chart interpretation.

CPS Fusion: Flexible and Customizable

Stoelting's CPS Fusion software takes a notably different design philosophy. Designed from the ground up, CPS Fusion features Quick Access Icons that enable single-click access to creating new subjects, displaying subject lists, or opening the Question Editor [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. The CPS Fusion Subject List provides optimized, sortable, and searchable organization of all polygraph exams [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. Stoelting describes the interface as offering "powerful functionality and a more efficient and intuitive experience" [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation..

CPS Fusion can import existing subject files from CPS Legacy and convert them into the new Fusion format — and it can also import data from Axciton, Lafayette, or Limestone instruments as long as the data was exported in pREFORMAT [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. This cross-platform data compatibility is a significant advantage for multi-instrument offices or examiners transitioning between systems. CPS Fusion also features an Integrated Multilingual User Interface (MUI) supporting English, Korean, Spanish, and Russian [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation..

The chart display in CPS Fusion offers granular control over display parameters and delivers what Stoelting describes as more clear and vibrant chart rendering compared to legacy systems [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. Report output includes numerical scores and subtotals for each relevant question, each chart, and each physiological component included in the score sheet [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. The automatic features in the CPS Fusion software allow the examiner to spend less time running the software and more time monitoring the subject [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. Virtually all functions and actions can be accomplished with a single click at any point in the program [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. Examiners interested in how AI can further streamline report writing should see our review of PolygraphReports.com: AI Report Writing.

Interface Head-to-Head

LXEdge Interface: Linear, guided workflow with PF-based navigation structure. Strong annotation and audit-trail system. Modern, streamlined visual design optimized for standardized protocols. Text-to-speech question reading. ESS, 3-position, and 7-position scoring modes. Compatible across LX6, LX7, and Paragon hardware [6]Verified LX6 Polygraph System Product Page
Confirms LXEdge compatibility with LX6, LX7, and Limestone Paragon series hardware, 10-channel capability, and leasing options..

CPS Fusion Interface: Quick Access Icons with single-click navigation. Flexible workspace with sortable, searchable subject list. Cross-platform data import capability (Axciton, Lafayette, Limestone via pREFORMAT). Built-in LCD touchscreen feedback when paired with Elite hardware [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. Multilingual user interface in four languages. More settings exposed to the user for advanced customization [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation..

Lafayette LX6 & LX7 Hardware

LXEdge is designed to work with Lafayette's LX6 and newer LX7 data acquisition systems, as well as the Limestone Paragon and ParagonX units [6]Verified LX6 Polygraph System Product Page
Confirms LXEdge compatibility with LX6, LX7, and Limestone Paragon series hardware, 10-channel capability, and leasing options.. The LX6 is a USB-connected unit that serves as the analog-to-digital bridge between physiological sensors and the software. It features 10 data channels including pneumograph respiration transducers (upper and lower thoracic), EDA electrodes, cardiovascular activity monitoring, a photoelectric plethysmograph (PPG), and an activity sensor pad [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program..

The LX6 offers a data transfer rate of up to 360 samples per second across all channels and 32-bit analog-to-digital conversion [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program.. It features superior quick-release Fischer connectors that are rated for twice the mating cycles of connectors used by other manufacturers, and electronic sensors cannot be incorrectly connected thanks to the engineered design [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program.. For even higher performance, the Limestone ParagonX offers native 625 samples per second per channel — the highest sampling rate in any polygraph instrument — with dual-channel 32-bit processing and optical isolation greater than 5000 mV [18]Verified Limestone ParagonX Polygraph System
Confirms ParagonX offers native 625 samples per second per channel — the highest sampling rate in any polygraph instrument, with dual-channel 32-bit processing and Lemo precision connectors..

The newer LX7 adds improved PPG sensor technology for more reliable cardiovascular readings across a broader selection of examinees, and it introduces Pulse Arrival Time (PAT) measurement — a time calculation between the ECG pulse and PPG waveform that research has found to be as effective as the cardiograph for discriminating between truthful and deceptive subjects [19]Verified LX7 Polygraph System Product Page
Confirms LX7 PAT measurement feature, improved PPG sensor, and research showing PAT is as effective as the cardiograph for discriminating between truthful and deceptive subjects.. For comprehensive hardware details, see our LX7-S Polygraph System review. Examiners considering upgrades should also review Polygraph Equipment Trade-In Programs.

Stoelting CPS Elite Hardware

Stoelting's CPS Elite hardware features 32-bit processing with a sampling rate of 360 samples per second per channel, a real-time clock to prevent sampling drift, complete electrical isolation, and simultaneous analog-to-digital converters [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. The Elite is the only polygraph unit with a built-in full-color LCD touchscreen display that provides real-time sensor feedback — examiners can verify sensor operation, select recording channels, and receive real-time alerts on sensor errors without leaving the subject to return to the computer [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage..

The CPS Elite offers exceptional sensor flexibility. Examiners can choose between traditional mechanical pneumos or Piezo electronic respiration sensors — the Elite is the only polygraph that offers Piezo sensors for recording respiration, which are preferred in laboratory settings [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. The Elite also allows EDA measurement using either skin conductance or skin resistance [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. Activity monitoring can be expanded using the Expansion Movement Sensor to include independent monitoring of arm, feet, and masseter muscle movements [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. The CPS Elite hardware supports multiple channels with medical-grade LEMO and Luer inputs and connectors.

Stoelting's sensor design philosophy emphasizes field flexibility — individual components can be selected and swapped based on the specific testing scenario. This modularity is valued by mobile examiners who conduct field examinations and need the ability to adapt equipment on location. The Elite can also be updated remotely to bring new features to both the hardware and software [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. For guidance on proper equipment care during transport, see Polygraph Equipment Shipping & Handling Protocols.

Signal Quality Comparison

Both platforms now converge at 360 samples per second and 32-bit analog-to-digital conversion [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program. [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage., producing data that meets or exceeds standards required by APA-accredited examination protocols. The NRC (2003) report noted that different polygraph instruments may record electrodermal activity differently — the CPS system was developed around skin conductance recording while Lafayette has traditionally employed skin resistance measurement [20]Verified Appendix F: Computerized Scoring of Polygraph Data (NRC 2003)
Confirms CPS algorithm details, PolyScore development at Johns Hopkins APL, five-algorithm comparison study on 97 criminal cases, and differences in EDA recording between Stoelting and Lafayette.. Modern hardware from both companies now typically offers selectable EDA modes, giving examiners the flexibility to choose their preferred method.

Within the Lafayette ecosystem, the Limestone ParagonX offers the highest data fidelity available, sampling at 625 samples per second per channel with dual-channel 32-bit processing [18]Verified Limestone ParagonX Polygraph System
Confirms ParagonX offers native 625 samples per second per channel — the highest sampling rate in any polygraph instrument, with dual-channel 32-bit processing and Lemo precision connectors.. This level of resolution exceeds what is currently available from any other manufacturer and may be of particular interest to examiners conducting research or requiring the highest possible waveform fidelity. For examiners considering how long their investment will last, see our guide on Polygraph System Lifespan.

The Central Importance of Computer Scoring

Computer-based scoring algorithms have become the backbone of modern polygraph practice. The APA and most credentialing bodies now require or strongly recommend the use of validated computerized scoring as part of the examination process. Research has demonstrated that pairing human evaluators who identify unsuitable data with computer algorithms yields impressive results — a mock crime experiment with 250 paid participants found substantial main effects of guilt in both OSS2 computer and human scoring, with no significant differences between them [21]Verified The Comparison Question Polygraph Test: A Contrast of Methods and Scoring
Mock crime experiment with 250 paid participants found substantial main effects of guilt in both OSS2 computer and human scoring, with no significant differences between them.. When no-opinion tests were excluded from a study of five scoring algorithms tested on 97 confirmed criminal cases, the proportion of correct decisions ranged from.88 to.91 [20]Verified Appendix F: Computerized Scoring of Polygraph Data (NRC 2003)
Confirms CPS algorithm details, PolyScore development at Johns Hopkins APL, five-algorithm comparison study on 97 criminal cases, and differences in EDA recording between Stoelting and Lafayette..

The scientific foundation of computerized scoring is well established. A comprehensive meta-analysis of the Comparison Question Polygraph Test analyzing 138 datasets confirmed significant effect sizes for the CQT paradigm that these algorithms serve [14]Verified A Comprehensive Meta-Analysis of the Comparison Question Polygraph Test
The largest CQT meta-analysis (138 datasets), found meta-analytic effect size of 0.69 including inconclusives, positive relationship between motivation and accuracy.. Additional research has found overall CQT accuracy estimates above 85% across studies [15]Verified A Meta-Analysis of the Comparison Question Polygraph Test: Moderator Effects
Found overall CQT accuracy estimates above 85% across studies, identified important moderator variables including examiner training and testing protocols.. For examiners interested in how comparison questions function within these scoring systems, research has demonstrated that between-chart discussion of comparison questions significantly improves accuracy [22]Verified The Discussion of Comparison Questions Between List Repetitions Is Associated with Increased Test Accuracy
Demonstrated that between-chart discussion of comparison questions significantly improved CQT accuracy — a procedural refinement now standard in modern polygraph practice..

LXEdge Algorithm Integration

Lafayette has invested heavily in algorithm integration within its software ecosystem. LXSoftware is bundled with the Objective Scoring System (OSS-3) scoring algorithm [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm., while additional algorithms including PolyScore, Identifi, and the Assessment of Individual Typicality (ASIT) are available [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. The OSS-3 algorithm was developed by Raymond Nelson, Mark Handler, and Donald Krapohl as an open-source, objective, and scientifically defensible method for analyzing polygraph data [23]Verified OSS-3: Objective Scoring System Version 3
Confirms OSS-3 algorithm has demonstrable validity with multiple validation samples and was developed as an open-source method for analyzing polygraph data.. OSS-3 has been tested against 292 known single-issue exams and a second data set with 100 known exams, correctly identifying 91.5% of the exams excluding inconclusive tests with only a 6% inconclusive rate [23]Verified OSS-3: Objective Scoring System Version 3
Confirms OSS-3 algorithm has demonstrable validity with multiple validation samples and was developed as an open-source method for analyzing polygraph data..

A distinctive strength of the Lafayette platform is the ESS-M (Empirical Scoring System - Multinomial), which represents an advancement over the original ESS. The ESS-M reference model uses Bayesian analysis together with multinomial reference distributions to calculate classification accuracy rates equaling or exceeding the original ESS [24]Verified PEAK Field Guide — ESS-M Reference Materials
Confirms ESS-M Bayesian analysis framework, multinomial reference model, advancement over original ESS, and Lafayette Instrument Company involvement.. ESS-M has gained broad acceptance for multi-channel data harmonization and is used internationally in both private and government sectors [25]Verified Modern Algorithms in Polygraph Data Analysis
Confirms OSS-3 and PolyScore accuracy rates of 85–92% under laboratory conditions, CPS Elite AI-based enhancements, and ESS-M broad acceptance.. The system provides classification results as a posterior probability using Bayes' theorem, along with categorical results and statistical classifiers in the form of p-values, confidence levels, or odds ratios [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm..

Lafayette's software also includes a Countermeasure Detection Algorithm that attempts to detect the use of mental and physical countermeasures employed by the subject during an examination [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. For more on this critical topic, see our article on Polygraph Countermeasures: Can Examiners Detect Them?. Additionally, the RLE (Respiratory Line Excursion) tool measures the ratio of the relevant response divided by the comparison response and produces a suggested pneumograph score [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm..

CPS Fusion Algorithm Integration

Stoelting's CPS scoring system was developed based on research conducted at the psychology laboratory at the University of Utah. The CPS algorithm is based on a multivariate approach using a relatively focused set of data features, employing skin conductance amplitude, the amplitude of increases in the baseline of the cardiograph, and a line-length composite measure of thoracic and abdominal respiration excursion [20]Verified Appendix F: Computerized Scoring of Polygraph Data (NRC 2003)
Confirms CPS algorithm details, PolyScore development at Johns Hopkins APL, five-algorithm comparison study on 97 criminal cases, and differences in EDA recording between Stoelting and Lafayette.. The NRC (2003) report noted that CPS performed equally well on detection of both innocent and guilty subjects in the landmark five-algorithm comparison study [20]Verified Appendix F: Computerized Scoring of Polygraph Data (NRC 2003)
Confirms CPS algorithm details, PolyScore development at Johns Hopkins APL, five-algorithm comparison study on 97 criminal cases, and differences in EDA recording between Stoelting and Lafayette..

CPS Fusion includes all scientifically validated scoring algorithms as part of its standard software package [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. The CPS Elite, the latest iteration of Stoelting's hardware, integrates AI-based enhancements that assess temporal alignment of reaction peaks, allowing more refined detection of correlated responses [25]Verified Modern Algorithms in Polygraph Data Analysis
Confirms OSS-3 and PolyScore accuracy rates of 85–92% under laboratory conditions, CPS Elite AI-based enhancements, and ESS-M broad acceptance.. The automatic result is based on AI-supported analysis, significantly improving the accuracy and speed of scoring [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation..

Five conventional algorithms — PolyScore, CPS, AXCON, Chart Analysis, and Identifi — were compared in a landmark study using data from 97 confirmed criminal cases [26]Verified Development of a Deep-Learning-Based Computerized Scoring Algorithm
Confirms five conventional algorithms (PolyScore, CPS, AXCON, Chart Analysis, Identifi) were compared on 97 confirmed criminal case chart sets.. This comparison demonstrated that all validated scoring systems provide meaningful results when applied to quality physiological data. OSS-3 and PolyScore have demonstrated accuracy rates between 85–92% under laboratory conditions [25]Verified Modern Algorithms in Polygraph Data Analysis
Confirms OSS-3 and PolyScore accuracy rates of 85–92% under laboratory conditions, CPS Elite AI-based enhancements, and ESS-M broad acceptance., underscoring the reliability of modern computerized analysis.

Algorithm Comparison Summary

Both platforms offer examiners access to scientifically validated scoring algorithms, but their implementations differ in important ways. Lafayette's LXEdge ecosystem provides particularly deep integration with the ESS-M statistical framework, which offers structured decision rules including the Two-Stage Rule, Subtotal Score Rules, Federal Zone Rules, and Grand Total Rules [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. These rules increase the reliability and reproducibility of analytic results and are well-suited for federal agencies requiring standardized reporting protocols.

Stoelting's CPS Fusion takes a more integrated approach, with all algorithms included in the base software package and the addition of AI-enhanced scoring capabilities. The CPS system's focus on balanced detection of both innocent and guilty subjects [20]Verified Appendix F: Computerized Scoring of Polygraph Data (NRC 2003)
Confirms CPS algorithm details, PolyScore development at Johns Hopkins APL, five-algorithm comparison study on 97 criminal cases, and differences in EDA recording between Stoelting and Lafayette. makes it well-suited for investigative applications where both sensitivity and specificity are equally important. Regardless of platform, research from mock crime studies with 120 participants has shown that comparison questions produce different physiological patterns for innocent versus guilty subjects, providing the empirical foundation upon which all these algorithms operate [27]Verified The Role of Comparison Questions in Physiological Detection of Deception
Mock crime study with 120 participants showing comparison questions produce different physiological patterns for innocent vs. guilty subjects..

LXEdge Report Generation

LXEdge offers a structured report generation system designed to meet federal and government reporting standards. The ESS-M Report Generator produces a narrative summary that includes both a categorical result and a statistical classifier in the form of a p-value, confidence level or odds ratio, along with manual scores and information about test accuracy [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. Reports are generated using scores from the manual score sheet, formulating a printable report and summary conclusion paragraph that describes the test results of both event-specific and multi-issue exams [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm..

The report includes statistical probability information derived from the ESS-M reference distributions, providing examiners with defensible, quantitative conclusions. Six different polygraph decision rules are executed automatically using the ESS-M Interpreter included in the score sheet [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. This structured approach creates a comprehensive audit trail that satisfies the documentation requirements of federal agencies, making LXEdge particularly attractive for government examiners. For tips on navigating the Polygraph Pre-Test Questionnaire, which is critical to proper report context, see our dedicated guide.

CPS Fusion Report Generation

CPS Fusion provides a more customizable approach to report generation. Report output includes numerical scores and subtotals for each relevant question, each chart, and each physiological component included in the score sheet [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. This granular breakdown gives examiners flexibility to present results in the format best suited to their practice context — whether that is a law enforcement investigation report, a PCSOT monitoring summary, or a private examination report.

The customizable subject profile templates allow examiners to create standardized intake forms that match their specific practice needs, while the sortable subject list provides efficient case management for high-volume practices [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation.. CPS Fusion's approach to reporting reflects its strength in the private-practice and PCSOT communities, where examiners often need to tailor reports to diverse audiences including courts, probation officers, treatment providers, and attorneys.

Lafayette Software Updates

Lafayette provides regular updates to both LXEdge and LXSoftware. LXEdge has received multiple updates since its initial release, with documented release notes for each version. Version 1.1.1.32, released May 15, 2024, added features including question text editing between charts within a series, automatic question advancement during replay, audio quality selection for microphones, and improved camera and microphone settings retention [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. Lafayette software is available for download free of charge from their website, and all users are encouraged to download the latest software [24]Verified PEAK Field Guide — ESS-M Reference Materials
Confirms ESS-M Bayesian analysis framework, multinomial reference model, advancement over original ESS, and Lafayette Instrument Company involvement..

Lafayette maintains customer support from their headquarters at 3700 Sagamore Parkway North in Lafayette, Indiana, and through PEAK CATC for training-related support [7]Verified PEAK Credibility Assessment Training Center
Confirms PEAK CATC launched in 2016, headquartered in Cape Coral, Florida, under Director Ben Blalock.. The company regularly hosts online training events for LXEdge users and offers training at APA seminars and other professional gatherings.

Stoelting Software Updates

Stoelting provides updates to CPS Fusion and has evolved the software through multiple versions. The Elite hardware can be updated remotely to bring new features to both the hardware and software [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage., which is a convenience for examiners who may not be located near a service center. Stoelting maintains customer support from their headquarters in Wood Dale, Illinois, and provides technical support through their website.

Stoelting also offers training courses including a Basic Examiner's Course and a Post-Conviction Sexual Offender Training Course [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations., ensuring that examiners using their platform have access to manufacturer-specific training resources.

Lafayette Training Ecosystem

Lafayette's training infrastructure is anchored by the PEAK Credibility Assessment Training Center, launched in 2016 in Cape Coral, Florida [7]Verified PEAK Credibility Assessment Training Center
Confirms PEAK CATC launched in 2016, headquartered in Cape Coral, Florida, under Director Ben Blalock.. PEAK's mission is to provide individuals in the public and private sectors with the highest quality credibility assessment training and consulting services available [7]Verified PEAK Credibility Assessment Training Center
Confirms PEAK CATC launched in 2016, headquartered in Cape Coral, Florida, under Director Ben Blalock.. PEAK offers online advanced ESS-M and algorithms courses, basic examiner courses, and continuing education events.

LXEdge includes an ever-expanding online knowledgebase with detailed documentation on how to perform various actions in the software [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. The transition from LXSoftware to LXEdge is designed to be intuitive for existing Lafayette users, as LXEdge offers many of the key features of LXSoftware with a modernized interface [6]Verified LX6 Polygraph System Product Page
Confirms LXEdge compatibility with LX6, LX7, and Limestone Paragon series hardware, 10-channel capability, and leasing options.. PEAK also offers the 40-Hour Nonconfrontational Interviewing Course for examiners seeking to enhance their interviewing skills. For examiners beginning their career, state-specific guides are available for locations such as New Mexico, Kansas, and Utah.

Stoelting Training Ecosystem

Stoelting offers direct training through its polygraph division, including a Basic Examiner's Course and a dedicated Post-Conviction Sexual Offender Training Course [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations.. The company's training programs are designed to familiarize examiners with the CPS Fusion software and Elite hardware ecosystem. The intuitive design of CPS Fusion is specifically engineered to reduce the learning curve — Stoelting states that virtually all functions and actions can be accomplished with a single click at any point in the program [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation..

Stoelting's historical presence in polygraph training extends back decades, with many prominent polygraph examiners and schools having chosen to use Stoelting instruments [10]Verified Stoelting Company — Polygraph Division History
Confirms first Cardio-Pneumo Polygraph in 1935, Reid Polygraph in 1951, Deceptograph standardized by US military in 1958, Polyscribe in 1974, Computer Aided Polygraph System in 1988.. The CPS Fusion's multilingual interface in English, Korean, Spanish, and Russian [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation. also reduces barriers for international examiners training on the platform. For international examiners, our guide to Polygraph Training in Germany: EPA Standards & Legal Context provides relevant regulatory information.

Lafayette Pricing Structure

Lafayette offers multiple purchasing pathways for its polygraph systems. The LX6 system is available for direct purchase, and Lafayette also offers a leasing program with low monthly payments that can typically be covered after a few examinations, with full ownership after 36 months [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program.. The lease includes a full DAS warranty for the life of the lease and a one-year warranty on system accessories [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program.. Lafayette also provides trade-in programs for older systems, including competitor systems, making it financially viable for examiners to upgrade from legacy equipment [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program..

LXEdge software and software updates are provided free of charge to hardware customers [24]Verified PEAK Field Guide — ESS-M Reference Materials
Confirms ESS-M Bayesian analysis framework, multinomial reference model, advancement over original ESS, and Lafayette Instrument Company involvement., which significantly reduces the ongoing cost of ownership. This means that algorithm updates, bug fixes, and feature additions come at no additional cost. For examiners considering purchasing refurbished units, our guide to Refurbished Polygraph Equipment covers important considerations.

Stoelting Pricing Structure

Stoelting offers the CPS Elite in Standard and Deluxe configurations [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations.. The Standard Systems include two respiration sensors (abdominal and thoracic), two EDA sensors, one blood pressure cuff, one seat activity sensor, electrode paste, and disposable adhesive electrodes [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations.. The Deluxe Systems add skin potential measurement, voice marking microphones, and a plethysmograph sensor [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations.. Examiners can choose between classic mechanical pneumos or Piezo electronic respiration sensors as part of their system configuration [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations..

CPS Fusion software is included with hardware purchases, and Stoelting provides ongoing support through their technical support team. The total cost of ownership should factor in hardware durability, software update frequency, sensor replacement costs, and available training programs.

Cost Comparison Considerations

When evaluating total cost of ownership, examiners should consider several factors beyond the initial hardware purchase price: software update costs (free from both manufacturers when bundled with hardware), sensor replacement frequency and pricing, training and continuing education expenses, available trade-in credits for future upgrades, and warranty coverage duration.

Both manufacturers offer trade-in programs for legacy systems. Within the Lafayette ecosystem, the Limestone ParagonX offers up to $2,700 in trade credit for older models or competitor systems [18]Verified Limestone ParagonX Polygraph System
Confirms ParagonX offers native 625 samples per second per channel — the highest sampling rate in any polygraph instrument, with dual-channel 32-bit processing and Lemo precision connectors.. Lafayette also accepts trade-ins of competitor systems toward new LX6 or LX7 purchases [17]Verified LX6 Polygraph System Hardware Specifications
Confirms LX6 10-channel system, 360 samples/sec, 32-bit ADC, quick-release Fischer connectors rated for twice the mating cycles, and leasing program.. Examiners should request current quotes directly from both manufacturers as pricing may vary based on configuration and available promotions.

PCSOT Capabilities

Post-Conviction Sex Offender Testing (PCSOT) represents a specialized and high-volume testing environment that places unique demands on polygraph software. Both LXEdge and CPS Fusion are fully capable of supporting PCSOT workflows, though their approaches differ in ways that matter to practitioners in this field.

CPS Fusion has particularly strong adoption in the PCSOT community. Its customizable subject profiles, efficient subject list management, and flexible report templates allow PCSOT examiners to maintain organized records across large caseloads. The ability to create custom subject profile templates [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation. is especially valuable for PCSOT examiners who conduct recurring examinations on the same individuals over extended supervision periods. Stoelting's dedicated Post-Conviction Sexual Offender Training Course [13]Verified Stoelting Systems and CPSpro Replacement Notice
Confirms that CPSpro has been replaced with the Elite, and details Standard and Deluxe system configurations. further supports examiners specializing in this area.

LXEdge's structured workflow and comprehensive ESS-M reporting capabilities also serve PCSOT examiners well, particularly in jurisdictions that require standardized reporting formats. The platform's strong annotation and audit-trail system creates the documentation necessary for court proceedings and probation review. For state-specific PCSOT requirements, see our guides for Missouri PCSOT, Minnesota PCSOT, Michigan PCSOT, and Maryland PCSOT.

Screening & Law Enforcement Applications

For screening examinations conducted by law enforcement and government agencies, both platforms support the necessary test formats and scoring protocols. A DoDPI study comparing screening test formats found both formats achieved significant detection rates with differences in sensitivity and specificity profiles [28]Verified A Comparison of PDD Accuracy Rates: CISP vs. TES Question Formats
DoDPI study comparing screening test formats, found both formats achieved significant detection rates with differences in sensitivity and specificity profiles., and both software platforms accommodate these formats.

LXEdge's linear workflow is particularly well-suited to agencies that require strict adherence to standardized testing protocols, while CPS Fusion's flexibility serves agencies that employ multiple test formats or specialized questioning techniques. The scientific foundation of comparison question testing is well established across both platforms — field studies have provided evidence for the practical effectiveness of different comparison question types in operational criminal investigations [29]Verified Examining Different Types of Comparison Questions in a Field Study of CQT Polygraph Technique
Field study providing evidence for practical effectiveness of different comparison question types in operational criminal investigations..

Choose Lafayette LXEdge If...

LXEdge is the strongest choice for examiners who work within federal or government agencies that require standardized protocols and structured reporting. The ESS-M statistical framework provides the most comprehensive Bayesian analysis tools available in any polygraph software, with six different decision rules automated in the score sheet [5]Verified LXSoftware and LXEdge Software Product Pages
Confirms LXEdge/LXSoftware features including OSS-3 bundling, ESS-M integration, RLE tool, report generation, scoring options, annotation capabilities, and countermeasure detection algorithm.. The Lafayette ecosystem offers the broadest hardware compatibility, spanning the LX6, LX7, and Limestone Paragon/ParagonX series — the last of which provides industry-leading 625 samples per second per channel [18]Verified Limestone ParagonX Polygraph System
Confirms ParagonX offers native 625 samples per second per channel — the highest sampling rate in any polygraph instrument, with dual-channel 32-bit processing and Lemo precision connectors..

LXEdge is also ideal for examiners who value a guided workflow that minimizes protocol deviations, a comprehensive audit trail for quality assurance, and free lifetime software updates. Lafayette's PEAK CATC provides ongoing education opportunities, and the company's 75+ year track record inspires confidence in long-term support and hardware availability [4]Verified Lafayette Instrument Company — Official Corporate Website
Confirms Lafayette's position as world's leading manufacturer of polygraph instrumentation, 75+ years of operation, and PEAK training center mission..

Choose Stoelting CPS Fusion If...

CPS Fusion is the optimal choice for private-practice examiners, PCSOT specialists, and agencies that value interface flexibility and sensor customization. The Elite hardware's built-in LCD touchscreen provides a genuine workflow advantage by allowing examiners to verify sensor operation without leaving the subject [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage.. Piezo electronic respiration sensors — exclusive to the Stoelting platform — offer an alternative recording method preferred in laboratory settings [12]Verified CPS Elite Polygraph Systems Product Page
Confirms CPS Elite specs: 360 samples/sec per channel, 32-bit processing, built-in LCD touchscreen, fourth-generation CPS, Piezo respiration sensors, sensor flexibility, and 135+ year heritage..

CPS Fusion's cross-platform data import capability (supporting Axciton, Lafayette, and Limestone data via pREFORMAT) [16]Verified CPSpro Fusion Software Product Page
Confirms CPS Fusion features: Quick Access Icons, CPS Legacy import, pREFORMAT import, numerical scoring output, multilingual UI, customizable subject profiles, and single-click navigation. makes it particularly valuable for multi-instrument offices or examiners transitioning between systems. The multilingual interface, AI-enhanced scoring capabilities, and highly customizable workspace make CPS Fusion a compelling choice for international practices and high-volume testing environments.

The Bottom Line

Neither platform is objectively superior — both Lafayette LXEdge and Stoelting CPS Fusion are professional-grade polygraph software platforms backed by validated science and decades of development. The right choice depends on your practice type, agency requirements, existing training background, and workflow preferences. What matters most is that the examiner is properly trained on their chosen platform and conducts examinations in accordance with APA standards and validated testing protocols.

As research has consistently shown, the combination of a competent examiner using a validated scoring algorithm on a reliable instrument is the formula for accurate polygraph testing. The first meta-analysis of the CQT laid the groundwork for understanding how subject type, incentives, and decision policy predict accuracy [30]Verified Meta-Analysis of the Comparison Question Test
The first meta-analysis of the CQT. Found significant moderator effects for subject type, incentives, and decision policy., and both platforms deliver the tools necessary to achieve these results in practice. For examiners who are still undecided, attending training events hosted by both manufacturers or requesting demonstrations is strongly recommended. For an understanding of situations when examinees might be disqualified, review our guide to Polygraph Examination Disqualification.