Assessments
Integrity testing for pre-employment screening
Integrity tests are among the most useful and most misunderstood instruments in selection. They predict counterproductive work behaviour better than almost anything else you can administer in fifteen minutes, and they do it with markedly smaller group differences than cognitive ability tests.
Adverse impact relative to cognitive ability measures
Scale types: overt and personality-based
Criterion: counterproductive work behaviour, not task performance
Overt versus personality-based scales
Overt integrity tests ask about attitudes toward and admissions of dishonest behaviour directly. They are transparent, which is both their weakness — obvious to fake — and their strength, because admissions carry real signal and the base rate of admission is higher than intuition suggests.
Personality-based scales approach the same criterion indirectly through conscientiousness, agreeableness and Honesty-Humility content. They are harder to fake and less confrontational for candidates, at some cost in directness. TalentSpark runs both and reports them separately, because a candidate who scores clean on the indirect scale and poorly on the overt one is telling you something specific.
What integrity tests actually predict
The criterion is counterproductive work behaviour: theft, absenteeism, substance use at work, rule-breaking, deliberate underperformance. It is not task performance, and vendors who market integrity tests as general performance predictors are overselling.
This matters because the two criteria come apart. A high performer with an integrity problem is a bigger liability than a mediocre performer without one, and integrity is the one dimension where the downside is unbounded. That asymmetry is the case for measuring it.
The adverse impact argument
Cognitive ability tests are the strongest single predictor of job performance and produce large group differences, which is the central dilemma of selection. Integrity tests sit in the rare quadrant of meaningful validity with small group differences, which is why they show up in almost every serious discussion of reducing adverse impact without sacrificing prediction.
Small is not zero, and validity generalisation is not a substitute for local evidence. TalentSpark tracks selection rates by protected group against the 4/5ths rule on live pipelines, and supports local criterion validation once you have enough scored hires with outcome data.
Frequently asked questions
Are integrity tests legal in the United States?
Written integrity tests are legal in most states and are explicitly distinguished from polygraph testing, which the Employee Polygraph Protection Act restricts sharply for private employers. Some states impose additional constraints. As with any selection instrument, the test must be job-related and monitored for adverse impact.
Do candidates just lie on integrity tests?
Some do, and the tests still work — that is the counterintuitive finding that keeps them in use. Meta-analytic validity is estimated on real applicant samples where faking was available and presumably attempted. TalentSpark additionally embeds lie scales and consistency checks so that systematic distortion is detected rather than absorbed.
How does integrity testing differ from a background check?
A background check reports what someone was caught doing. An integrity test estimates propensity, including for people who have not been caught. They are complements: base rates of detection for workplace theft are low enough that a clean record carries less information than most hiring managers assume.
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Predict performance before day one.
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