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HR & People Science Glossary

Clear definitions of essential terms in human resources and people science.

  • Adverse Impact (Hiring)
    Johnathen Evans-Guilbault Johnathen Evans-Guilbault 11 March 2026

    Adverse Impact (Hiring)

    Adverse impact occurs when a hiring practice results in significantly different selection rates for different demographic groups, regardless of intent.

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  • Reference Inflation
    Johnathen Evans-Guilbault Johnathen Evans-Guilbault 11 March 2026

    Reference Inflation

    Reference inflation is the tendency for references to be overwhelmingly positive, so positive they fail to distinguish between candidates. Structure counteracts it.

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  • ((○))
    Johnathen Evans-Guilbault Johnathen Evans-Guilbault 11 March 2026

    Observer-Rated Personality

    Observer-rated personality is when someone who knows you rates your traits rather than you rating yourself. Research shows these ratings predict job performance twice as well as self-reports.

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  • Inter-Rater Reliability
    Johnathen Evans-Guilbault Johnathen Evans-Guilbault 11 March 2026

    Inter-Rater Reliability

    Inter-rater reliability is the degree to which independent raters give consistent assessments of the same person. It sets the ceiling for how valid any assessment can be.

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  • Criterion-Related Validity
    Johnathen Evans-Guilbault Johnathen Evans-Guilbault 11 March 2026

    Criterion-Related Validity

    Criterion-related validity is the degree to which scores on a selection tool actually predict a meaningful outcome such as job performance, measured by correlation.

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