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Construct Validity of the E-LSRP in a Correctional Sample.
Martin Sellbom1, Jaiden S Butler2, Tayla T C Lee2
1University of Otago, Dunedin, New Zealand.
Assessment
|August 11, 2021
Summary
The Expanded-Levenson Self-Report Psychopathy Scale (E-LSRP) reliably measures psychopathy in male inmates. Its scores show construct validity, making it a useful tool for correctional settings.
Area of Science:
- Psychology
- Forensic Psychology
- Psychometrics
Background:
- The Levenson Self-Report Psychopathy Scale (LSRP) has limitations.
- The Expanded-Levenson Self-Report Psychopathy Scale (E-LSRP) was developed to enhance psychometric properties.
Purpose of the Study:
- To investigate the construct validity of the E-LSRP.
- To evaluate the E-LSRP's reliability and validity in a male inmate population.
Main Methods:
- Confirmatory factor analysis was used to assess the scale's factor structure.
- Correlational and multiple regression analyses examined convergent and discriminant validity.
Main Results:
- Confirmatory factor analysis supported a three-factor model for the E-LSRP.
- E-LSRP scores demonstrated good reliability and construct validity.
- Evidence supported convergent and discriminant validity against related personality traits and internalizing disorders.
Conclusions:
- The E-LSRP is a reliable and valid measure of psychopathy in correctional settings.
- The E-LSRP can be a valuable tool for assessing psychopathy in forensic populations.
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