Support for a two-factor model of impulsivity and hazardous substance use in British and Australian young adults

Multiple lines of evidence suggest impulsivity comprises two distinct components relevant to substance misuse. Reward drive reflects sensitivity to rewarding stimuli and subsequent approach motivation. Rash impulsiveness reflects the ability to inhibit such approach behavior in light of negative con...

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Bibliographic Details
Published in:Journal of research in personality 2011-02, Vol.45 (1), p.10-18
Main Authors: Gullo, Matthew J., Ward, Elizabeth, Dawe, Sharon, Powell, Jane, Jackson, Chris J.
Format: Article
Language:English
Subjects:
2-CARS
Addiction
Alcohol
Illicit drugs
Impulsivity
Rash impulsiveness
Reward drive
Reward sensitivity
Structural equation modeling
Substance abuse
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Summary:Multiple lines of evidence suggest impulsivity comprises two distinct components relevant to substance misuse. Reward drive reflects sensitivity to rewarding stimuli and subsequent approach motivation. Rash impulsiveness reflects the ability to inhibit such approach behavior in light of negative consequences. However, several studies suggest the latter trait to be a more robust predictor. This begs the question as to whether a less parsimonious two-factor model is necessary. This study employed structural equation modeling to compare the fit of one- and two-factor impulsivity models to alcohol and drug use data provided by British ( n = 183) and Australian ( n = 271) young adults. Results consistently supported the two-factor model and its cross-cultural consistency, with rash impulsiveness being the more robust predictor.
ISSN:0092-6566
1095-7251
DOI:10.1016/j.jrp.2010.11.002