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The Sexual Experiences Survey: interpretation and validity

G Karabatsos1

  • 1MESA Psychometric Laboratory, University of Chicago, IL 60637-1609, USA.

Journal of Outcome Measurement
|January 1, 1997
PubMed
Summary

This study validates the Sexual Experiences Survey (SES) using Rasch analysis on a large sample of college students. Findings support a dimensional view of sexual aggression, with behaviors scaling from mild to severe.

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Area of Science:

  • Psychology
  • Criminology
  • Sociology

Background:

  • The Sexual Experiences Survey (SES) is a key tool for measuring sexual aggression and victimization.
  • Previous psychometric evaluations of the SES have not fully utilized advanced statistical methods.

Purpose of the Study:

  • To establish the construct validity of the SES using Rasch analysis.
  • To evaluate the survey's item hierarchy and measurement properties for diverse samples.
  • To provide a robust framework for interpreting SES responses.

Main Methods:

  • Rasch analysis applied to a national sample of 6,159 US college students (aged 18-24).
  • Evaluation of item hierarchy, fit statistics, and separation indices.
  • Comparison of item calibrations for male and female respondents.

Main Results:

  • Rasch analysis confirmed the construct validity of the SES.
  • Sexually aggressive behaviors were successfully scaled along a single continuum from mild to extreme.
  • Item hierarchy aligned with theoretical expectations, demonstrating an order of severity.
  • Common item calibrations were valid for both male and female respondents.

Conclusions:

  • Rasch analysis is essential for effective interpretation of SES item responses.
  • The study's item calibrations are suitable for measuring sexual aggression and victimization in college samples (18-24).
  • A scalogram method, in addition to Rasch analysis, is recommended for differentiating between offenders and victims.

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