Psychometrics & Testing

Response Bias

The tendency for test-takers to answer in systematic ways that don't reflect their true personality: social desirability, acquiescence, extreme responding.

Response biases are systematic distortions in how people answer personality tests. The most common:

Social desirability: answering how you think you "should" rather than how you actually are ("I never get angry" — really?). Acquiescence: tendency to agree with all statements regardless of content. Extreme responding: always choosing "strongly agree" or "strongly disagree," avoiding middle options.

JobCannon's tests mitigate bias through: balanced item wording (mix of positive and reverse-coded items), neutral framing, and Likert scales that allow nuanced responding. Despite this, self-report tests are inherently limited — your personality as perceived by others (peer ratings) often predicts outcomes better than your self-assessment.

Related Terms

Test-Retest Reliability

A measure of how consistent a test's results are when the same person takes it again. High reliability (0.70+) means you'll get similar results each time.

Validity (Psychometric)

Whether a test measures what it claims to measure. A valid personality test actually predicts real-world outcomes like job performance, relationship satisfaction, or mental health.

Likert Scale

A response format used in personality tests where you rate agreement on a scale (e.g., "Strongly Disagree" to "Strongly Agree"). Named after psychologist Rensis Likert (1932).

Psychometric Test

A standardized, scientifically designed assessment that measures psychological attributes — personality traits, cognitive abilities, aptitudes, or attitudes — in a reliable and valid way.

Cronbach's Alpha

A statistic measuring internal consistency — how closely related a set of test items are as a group. Values above 0.70 indicate acceptable reliability for personality scales.

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