State-level impulsivity,affect, and alcohol: A psychometric evaluation of the momentary impulsivity scale across two intensive longitudinal samples |
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| Affiliation: | 1. Department of Psychology, University of Maryland, College Park, MD, USA;2. Division of Public Health, Michigan State University, Flint, MI, USA;3. Department of Psychology, George Mason University, Fairfax, VA, USA;4. Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, KS, USA;1. Texas Tech University, Department of Psychological Sciences, Psychology Building, Box 42051, Lubbock, TX 79409, United States;2. Addiction Sciences Division, Department of Psychiatry & Behavioral Neuroscience, University of Cincinnati College of Medicine, 3131 Harvey Ave, Suite 104, Cincinnati, OH 45229, United States |
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| 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. |
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| Keywords: | State-level impulsivity Trait-level impulsivity Multi-trait, multi-method Daily diary Ecological momentary assessment Psychometrics Alcohol Affect |
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