Impulsive States and Impulsive Traits: A Study of the Multilevel Structure and Validity of a Multifaceted Measure of Impulsive States.

Emerging evidence suggests impulsive states may be reliably measured in the moment using ecological momentary assessment (EMA); however, research has not investigated whether the multi-factor structure of impulsive traits also characterizes impulsive states. In two independent samples spanning adolescence through young adulthood (n = 211, n = 222), we adapted global self-report measures of impulsive traits to EMA and conducted multilevel confirmatory factor analyses to characterize the within- and between-person factor structure of five impulsive traits (negative urgency, planning, persistence, sensation seeking, and positive urgency). Across both studies, factor models with one factor for each UPPS-P facet fit the data well at both levels, though some latent factors were highly correlated. Aggregated impulsive states, especially negative urgency, predicted oppositional defiant disorder symptoms, emotional problems, alcohol problems, and attention deficit hyperactivity disorder symptoms. Our results suggest that EMA measures can capture a range of impulsive states that mirrors the heterogeneity seen in the trait literature.