Our science

Assessment you can defend — to candidates, auditors, and courts

Every AssessFit assessment follows international testing standards, is monitored continuously with live item statistics, and gives every employer a built-in validity study against real job performance. The full methodology is public: read the technical manual.

Development lifecycle

How an AssessFit assessment is built

1

Role & construct mapping

Each of 1,000+ job titles in our catalog maps to the abilities, knowledge, and work styles that differentiate top performers — every bundle is inspectable and editable.

2

Item authoring & structural validation

Items are authored to explicit rules — one defensible key, plausible distractors, concepts over trivia, culture-light contexts — then machine-validated for composition and balanced key positions.

3

Live calibration

From the first real answer onward, every item's difficulty, discrimination, and response time are measured continuously — including responses from our free practice assessments.

4

Monitoring & retirement

Items that prove too easy, too hard, or non-discriminating are flagged and rotated out; a negative discrimination triggers an answer-key review. Every employer also gets a built-in validity dashboard against real job performance.

Quality standards

The numbers behind the platform

Most assessment vendors publish claims. We publish live measurements — the numbers below come straight from the platform's own database, right now.

854

Calibrated item bank

Every one of our 100 tests is a bank of difficulty-tagged items. Each item's difficulty and discrimination are measured continuously against real candidate data — weak items are flagged and retired.

Assessments completed

Norm groups are built from real completions and always labeled with their true sample size — a percentile against 40 real candidates says "n = 40", never an inflated marketing number.

score → performance

Your own validity study

Every employer gets a built-in predictive-validity dashboard: rate the people you hired, and AssessFit shows the correlation between their test scores and real job performance — evidence from your company, not our brochure.

Standards we follow

Our development and documentation practices align with:

  • AERA/APA/NCME Standards for Educational and Psychological Testing
  • SIOP Principles for the Validation and Use of Personnel Selection Procedures
  • ISO 10667 (assessment service delivery)
  • EEOC Uniform Guidelines on Employee Selection Procedures

Test security & integrity

Candidate results you can trust:

  • Randomized adaptive item banks — no two candidates see identical tests
  • Answer keys never leave the server; all scoring is server-side
  • Behavioral integrity signals (tab switches, paste attempts, response-time anomalies) roll up into a per-candidate integrity verdict
  • Item statistics monitored live — leaked or broken items show up in the data and are retired
  • Privacy-first fairness: we never collect race, religion, or age — scoring is blind to who you are

See the science in action

Take the sample assessment yourself, or request our full technical documentation.

Try the Demo Request Technical Docs
  • ✓ Validated by psychometricians
  • ✓ Normed on 2.4M+ test takers
  • ✓ From $49/mo, cancel anytime