Linking dimensions and dynamics in psychopathology research: An example using DSM-5 instruments

The DSM-5 includes two measures to assess dimensions of personality pathology (Personality Inventory for DSM-5; PID-5) and cross-cutting symptoms of psychopathology (DSM-5 Cross-cutting Symptom Measure; CCS). Few studies have evaluated these measures in an ecologically valid context. Participants (N = 248, student sample) completed self-report versions of the DSM-5 measures, and then completed a two-week daily diary of internalizing and externalizing outcomes. The CCS scales evidenced convergent and discriminant validity with these outcomes, PID-5 Negative Affectivity and Detachment were related to internalizing outcomes, and PID-5 Antagonism was related to externalizing outcomes. We also demonstrated the benefit of linking static dimensions to temporally-dynamic processes by examining how PID-5/CCS dimensions moderated the within-person associations among daily cognitive distortions and internalizing and externalizing outcomes.