Effects of Varying Degrees of Fixed and Random Responding on the Validity of Score Interpretation for the SP and PSY-5 Scales of the MMPI-2-RF

<p>The Minnesota Multiphasic Personality Inventory – 2 Restructured Form (MMPI-2- RF; Tellegen & Ben-Porath, 2008/2011) is a widely used self-report measure of psychopathology and personality. However, the self-report format of the MMPI-2-RF suggests that interpretation of its scales and the clinical recommendations that follow are vulnerable to invalid response styles. This dissertation builds upon previous research (Handel, Ben-Porath, Tellegen, & Archer, 2010) to examine the effect of random and fixed responding, as measured by the VRIN-r and TRIN-r Scales, on the 28 SP and PSY-5 Scales. A computer simulation procedure was used to insert increasing degrees of inconsistent responding into protocols from two large samples (N = 2, 276 and N = 704). Results indicated that increasing degrees of inconsistent responding increase SP and PSY-5 Scale mean T-scores and weaken external criterion validity. Further, certain SP and PSY-5 Scales evidenced large changes in mean T-scores at relatively low levels of simulated inconsistent responding. Implications of these results and future areas of investigation are discussed.</p>

Name thesis:degree_name

Doctor of Psychology (PsyD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Psychology

Year dc:date.available

2015

Author dc:creator

• Minifie, Joseph Brooks

Contributors dc:contributor

• Richard Handel
• Robert Archer
• Disideria Hacker
• Serina Neumann
• James Paulson

• Fixed responding
• MMPI-2-RF
• Random responding
• TRIN-r
• VRIN-r
• Minnesota Multiphasic Personality Inventory
• Clinical Psychology
• Quantitative Psychology

Statement dc:rights

• <p>In Copyright. URI: <a href="http://rightsstatements.org/vocab/InC/1.0/">http://rightsstatements.org/vocab/InC/1.0/</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).</p>

Identifier

9781339010021

OAI identifier oai:identifier

oai:digitalcommons.odu.edu:psychology_etds-1004