Journal
ASSESSMENT
Volume 29, Issue 8, Pages 1942-1953Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/10731911211040106
Keywords
stages of change; Readiness to Change Questionnaire; RCQ; measurement invariance; brief motivational intervention; alcohol use
Categories
Funding
- National Institute on Alcohol Abuse and Alcoholism (NIAAA) [R01AA015439, F32AA028712, T32AA018108, K01AA023233]
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The study found that the Readiness to Change Questionnaire (RCQ) demonstrated measurement invariance across biological sex and intervention conditions, but only partial invariance across race/ethnicity and alcohol use severity. Hispanic and Black participants scored higher on contemplation and action in the RCQ, while White participants scored lower on these dimensions.
We tested measurement invariance of the Readiness to Change Questionnaire (RCQ) to evaluate its utility in assessing the stages of change in the context of brief intervention for alcohol use in opportunistic settings. Participants (N = 596) were patients admitted from three Level I trauma centers who were randomly assigned to one of three brief alcohol interventions. The RCQ was administered at baseline and 3-month follow-up. The RCQ was scalar invariant across biological sex and partially scalar invariant across race/ethnicity and alcohol use severity. Hispanic participants were higher on contemplation and action and Black participants were higher on action than White participants. Hazardous drinkers were lower in precontemplation and higher in contemplation and action than nonhazardous drinkers. The RCQ was scalar invariant across intervention conditions and time. Brief motivational intervention with a booster increased action from baseline to 3 month. These findings provide further support for the use of the RCQ.
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