Interpreting the MMPI-A-RF in the Context of the HiTOP Psychosis Superspectrum: Findings from an Adolescent Inpatient Sample
Abstract
The present study examined the relationship between the Minnesota Multiphasic Personality Inventory-Adolescent-Restructured Form (MMPI-A-RF)’s Psychopathology Five (PSY-5) scales and Higher Order (H-O) scales as they relate to therapist ratings of psychosis on the Hopkins Psychiatric Rating Scale (HPRS) among an adolescent inpatient sample. Consistent with the HiTOP Psychosis Superspectrum Model, it was predicted that the MMPI-A-RF scales of Psychoticism (PSYC-r) and Introversion/Low Positive Emotionality (INTR-r) will relate to therapist ratings of psychosis. While the Model examines both Detachment and Thought Disorder, several aspects of Detachment aren’t explicitly reflected in the study. However, when considering the PSY-5 scales, it was predicted that some of these traits and symptoms will be captured by INTR-r. Factor analysis results yielded two dependent variables: the Psychosis Factor Dimension and the Psychosis Single Item Rating. Results from multiple linear regression analyses indicate some support for the hypothesis that the MMPI-A-RF scales of PSYC-r and INTR-r relate to the presence of psychosis, but solely for the Psychosis Factor Dimension at admission. Therapist ratings of psychosis were predicted only by PSYC-r, but not INTR-r for the Psychosis Item Rating. Lower Aggression (AGG-r) and Disconstraint (DISC-r) in the context of Behavioral/Externalizing Dysfunction (BXD) are also related to therapist ratings of psychosis at admission. At discharge, only INTR-r was predictive of psychosis for both dependent variables. However, lower Emotional/Internalizing Dysfunction (EID) was also predictive of therapist ratings of psychosis for the Psychosis Item Rating. The discovered profile patterns offer more information in regard to adolescent psychosis than elevations on the Thought Dysfunction (THD) scale. When considering Kotov’s Psychosis Superspectrum Model, it is possible that other traits and/or symptoms of psychosis are captured the resulting profile patterns.
Subject Area
Psychology|Clinical psychology|Therapy|Neurosciences|Behavioral psychology
Recommended Citation
Schellenger, Kendall, "Interpreting the MMPI-A-RF in the Context of the HiTOP Psychosis Superspectrum: Findings from an Adolescent Inpatient Sample" (2023). ETD Collection for Pace University. AAI30633785.
https://digitalcommons.pace.edu/dissertations/AAI30633785
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