State-Level Impulsivity, Affect, and Alcohol: A Psychometric Evaluation of the Momentary Impulsivity Scale Across Two Intensive Longitudinal Samples. A psychometric evaluation of the momentary impulsivity scale across two intensive longitudinal samples

Angela Stevens, Brittany Blanchard, Amelia Littlefield, J L Brown, M A Halvorson, T Janssen, K M King, Andrew Littlefield

Research output: Contribution to journalArticle

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
JournalDefault journal
Volume85
DOIs
StatePublished - Apr 1 2020

Keywords

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

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