An integrity test for employment is a short questionnaire that estimates how likely a candidate is to behave counterproductively at work: steal, skip shifts, break rules, cut safety corners or treat colleagues badly. It does not read minds and it is not a polygraph. It measures attitudes and dispositions that, across large studies, correlate with those behaviours. Used well, alongside a skills test and an interview, it is one of the cheapest ways to reduce a bad hire in roles that handle money, stock, customers or safety. Used badly, as a secret filter or a moral verdict, it costs you candidates and trust. This guide covers what the tests measure, what the research supports, where the legal lines are, and how to add one to your screening round.
Key takeaways
- An integrity test predicts counterproductive behaviour at work: theft, absenteeism, rule breaking, unsafe shortcuts.
- Two kinds exist. Overt tests ask directly about attitudes to dishonesty. Personality-based tests infer risk from conscientiousness, agreeableness and emotional stability.
- Meta-analyses put integrity tests among the better predictors of job performance, and among the best for counterproductive behaviour, especially combined with a cognitive test.
- Use it as one signal in a screening round, never as a lie detector or a sole reason to reject.
- Tell candidates what it is, keep it short, and apply it to every applicant for the role, not a suspicious few.
What an integrity test actually measures
Integrity tests target a cluster of behaviours researchers call counterproductive work behaviour, or CWB. That includes theft and fraud, but also the quieter costs: unexcused absence, lateness, misuse of time, ignoring procedures, hostility towards colleagues and customers. Most tests produce a single reliability or integrity score plus a few sub-scores, for example rule adherence, honesty attitudes and dependability.
- Attitudes to dishonesty: how the candidate rationalises small thefts, lies or shortcuts, and how common they believe such behaviour is.
- Dependability: whether they show up, follow through and finish what they start.
- Rule adherence: how they treat procedures they find inconvenient.
- Impulse control and hostility: how they respond to frustration, criticism and provocation.
- Self-reported past behaviour: some overt tests ask directly about previous misconduct.
A score is a probability, not a verdict. A low score means a candidate answered like people who, on average, behave counterproductively more often. It does not mean this candidate has done anything wrong.
Overt versus personality-based tests
| Overt integrity test | Personality-based test | |
|---|---|---|
| What it asks | Direct questions about theft, honesty and rule breaking | Broad personality statements with no obvious right answer |
| Candidate experience | Feels like an honesty test; some find it intrusive | Feels like a personality questionnaire |
| Faking | Easier to spot the desired answer; good tests use consistency checks | Harder to game because the target is hidden |
| Best for | Roles handling cash, stock or sensitive data | Any role where reliability and conduct matter |
| Typical length | 10 to 20 minutes | 10 to 15 minutes |
Most modern hiring platforms, including springhire's Integrity and Reliability inventory, take the personality-based route or blend the two: a handful of situational items about rules and honesty inside a wider set of dependability and self-control statements. That keeps the test short and keeps candidates from feeling accused.
Do integrity tests work? What the research says
Integrity tests are among the most studied selection tools. The landmark meta-analysis by Ones, Viswesvaran and Schmidt (1993), covering hundreds of studies, found integrity tests predicted counterproductive behaviour strongly and overall job performance moderately. Schmidt and Hunter's 1998 review ranked the combination of a general cognitive ability test plus an integrity test as one of the most valid two-test batteries available. A 2012 re-analysis by Van Iddekinge and colleagues found smaller effects for job performance, and the field has debated the exact numbers since, but the practical conclusion has held: integrity tests add real predictive value, most of it for conduct rather than output, and they add the most when paired with an ability or skills test.
- Strongest for: predicting theft, absenteeism, disciplinary problems and turnover.
- Moderate for: supervisor ratings of overall performance.
- Weak on its own for: technical skill, which is why you pair it with a skills test.
- Adverse impact: integrity tests show little to no difference between demographic groups, which is one reason they are widely used.
Which roles benefit most
- Cash and stock handling: retail, hospitality, warehouse, logistics, delivery.
- Finance and accounts: accounts payable and receivable, payroll, bookkeeping, anyone who approves or moves money.
- Access to data and systems: IT support, system administrators, anyone with privileged access.
- Unsupervised and remote roles: field sales, home-based support, night shifts.
- Customer-facing roles at volume: call centres and support teams, where absence and conduct drive cost.
- Safety-critical work: anywhere a skipped procedure hurts someone.
For senior and specialist roles, an integrity test still adds signal, but reference checks, background checks and structured interviews carry more of the weight. Use the inventory as a prompt for interview questions rather than a gate.
The legal lines
Paper-and-pencil honesty tests replaced polygraphs after the US Employee Polygraph Protection Act of 1988 banned most pre-employment lie detectors. Integrity questionnaires are legal in most jurisdictions, with conditions. Keep to these and you are on safe ground; this is general guidance, not legal advice, and local rules vary.
- Job relevance: use the test for roles where reliability and conduct clearly matter, and be able to say why.
- Consistency: give it to every applicant for the role at the same stage. Never single out individuals.
- No medical or clinical items: questions that could diagnose a mental health condition can make the test a medical examination under disability law (the ADA in the US). Reputable inventories avoid them.
- Transparency and consent: tell candidates what the assessment is and how it is used. In the EU and UK, GDPR requires a lawful basis and a clear privacy notice, and automated decisions with significant effects need human review.
- Massachusetts and Rhode Island restrict written honesty tests; check state law if you hire there.
- Do not use it alone to reject: combine it with skills evidence and an interview, and keep a human in the decision.
How to add an integrity test to your screening round
- 1
Decide the role and the reason
Write one sentence on why conduct matters for this job: handles cash, works unsupervised, has system access. That sentence is your job-relevance justification and your candidate explanation.
- 2
Pair it with a skills test
Integrity predicts conduct; a skills test predicts whether they can do the work. Two 10-minute tests in the same link give you both without a long process.
- 3
Put it in the same link as everything else
One assessment link with the skills tests, the integrity inventory and a short one-way video round means one experience for the candidate and one ranked report for you.
- 4
Tell candidates what it is
A line in the invite: 'This includes a short work-style questionnaire. There are no trick questions; answer honestly.' Candour raises completion and lowers faking.
- 5
Read the score as one input
Rank on the combined report. A low integrity score with strong skills is a reason to probe in interview, not to reject on sight.
- 6
Ask follow-up questions in the interview
'Tell me about a time a rule got in the way of getting the job done. What did you do?' The inventory tells you where to look; the interview tells you what they did.
What a good integrity test looks like
- Short: 10 to 15 minutes. Longer tests lose candidates and add little.
- Randomised or large item bank, so answer keys do not circulate.
- Consistency and social-desirability checks that flag implausibly perfect answers.
- Plain-language report a hiring manager can read without training, with what a high and a low score tend to mean for the role.
- No clinical or medical content.
- Scored automatically and shown next to skills scores, so it is weighed, not worshipped.
springhire's Integrity and Reliability inventory is one of seven personality inventories included on every plan, including Free. It sits in the same candidate link as the 200+ skills tests and the one-way video interview, and it is scored into the same ranked report.
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