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Related Experiment Videos

Checking the reliability and validity of HSPQ profiles.

J L Sherman1, S E Krug, M Birenbaum

  • 1Institute of Personality and Ability Testing.

Journal of Personality Assessment
|December 1, 1979
PubMed
Summary
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A new scale, the random or validity (RV) scale, effectively identifies invalid response patterns on the High School Personality Questionnaire (HSPQ). This tool accurately classifies profiles, enhancing the reliability of personality assessment data.

Area of Science:

  • Psychometrics
  • Personality Assessment
  • Psychological Measurement

Background:

  • The High School Personality Questionnaire (HSPQ) is a widely used tool for assessing adolescent personality traits.
  • Ensuring the validity of response protocols is crucial for accurate interpretation of personality assessment results.

Purpose of the Study:

  • To develop and validate a scale capable of detecting invalid response patterns within the High School Personality Questionnaire (HSPQ).
  • To improve the integrity and reliability of data obtained from the HSPQ.

Main Methods:

  • Development of a "random" or "validity" (RV) scale using ten items selected from a large HSPQ standardization sample.
  • Cross-validation of the RV scale on nearly 2,000 protocols, including both valid and randomly generated response sets.

Related Experiment Videos

  • Comparative analysis of trait scale reliabilities and inter-scale correlations between valid and invalid (RV-identified) profiles.

    • Main Results:

    • The developed RV scale demonstrated the ability to correctly classify 79% of response protocols in cross-validation studies.
    • Protocols identified as invalid by the RV scale exhibited significantly lowered KR-20 reliabilities for the 14 trait scales.
    • Invalid response patterns substantially altered the correlations among trait scales, disrupting the test's underlying factor structure.

    Conclusions:

    • The RV scale is a valuable tool for identifying invalid response patterns in the HSPQ.
    • The scale's effectiveness in detecting response invalidity enhances the overall quality and interpretability of HSPQ assessment data.
    • The findings underscore the importance of response validity checks in personality assessments to ensure accurate psychological profiling.