State-level impulsivity, affect, and alcohol: A psychometric evaluation of the momentary impulsivity scale across two intensive longitudinal samples

Angela K. Stevens, Brittany E. Blanchard, Amelia E. Talley, Jennifer L. Brown, Max A. Halvorson, Tim Janssen, Kevin M. King, Andrew K. Littlefield

Research output: Contribution to journalArticlepeer-review

Abstract

We reexamined the psychometric properties of the Momentary Impulsivity Scale (MIS) in two young adult samples using daily diary (N = 77) and ecological momentary assessment (N = 147). A one-factor between- and within-person structure was supported, though “I felt impatient” loaded poorly within-person. MIS scores consistently related to emotion-driven trait impulsivity; however, MSSDs of MIS scores were unrelated to outcomes after accounting for aggregate MIS scores. We observed positive, within-person correlations with negative, but not positive, affect. Between-person MIS scores correlated with alcohol problems, though within-person MIS-alcohol relations were inconsistent. MIS scores were unrelated to laboratory-based impulsivity tasks. Findings inform the assessment of state-level impulsivity in young adults. Future research should prioritize expanding the MIS to capture the potential multidimensionality of state-level impulsivity.

Original languageEnglish
Article number103914
JournalJournal of Research in Personality
Volume85
DOIs
StatePublished - Apr 2020

Keywords

  • Affect
  • Alcohol
  • Daily diary
  • Ecological momentary assessment
  • Multi-trait, multi-method
  • Psychometrics
  • State-level impulsivity
  • Trait-level impulsivity

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