Topic
Psychometric researchers
Articles in Assessments & Testing written specifically for psychometric researchers.
Criterion Contamination: When the Yardstick Used to Validate a Test Is Itself Corrupted
A validation study showing a test correlates well with supervisor ratings has only shown the test predicts supervisor ratings — which is a genuinely different and weaker claim than showing it predicts actual job performance.
Face Validity Is Not Validity: A Field Guide for Assessment Builders
Stakeholders judge an assessment by whether it feels credible. That judgment has almost no relationship to whether the assessment actually measures what it claims to.
Test-Retest Reliability Doesn't Mean What Most People Assume It Means
A psychometric instrument can have excellent test-retest reliability and still be measuring the wrong thing entirely, consistently — reliability and validity answer genuinely different questions.