“…The dynamics of PDs can be examined at different time scales, nomothetically or idiographically, and across or within situations (Hopwood, 2018; Hopwood, Zimmermann, Pincus, & Krueger, 2015; Ringwald, Woods, et al, 2020). First, the long‐term development of PDs, for example, the stability of pathological traits and symptoms, is of theoretical and practical relevance (e.g., Hopwood et al, 2013; see also Hopwood & Bleidorn, 2018 for a review). Second, some PDs can be defined by dysfunctional patterns of within‐person variability across situations.…”