Objective
Research on ethnic health disparities requires the use of psychometrically sound instruments that are appropriate when applied to ethnically diverse populations. The Short Inventory of Problems (SIP) assesses alcohol-related consequences and is often used as a measure to evaluate intervention effectiveness in alcohol research; however, whether the psychometric properties of this instrument are comparable across language and ethnicity remains unclear.
Method
Multi-group Confirmatory Factor Analysis (MGCFA) was used to test for the invariance of the measurement structure of the SIP across White Non-Hispanic English speaking (N=642), Hispanic English speaking (N=275), and Hispanic Spanish speaking (N=220) groups.
Results
The MGCFA model in which factor loadings, measurement intercepts, and item residuals were constrained to be equal between English speakers and Spanish speakers exhibited a reasonable fit to the data, χ2(221)=1089.612 p<.001, TLI=.926; CFI=.922, RMSEA=.059 (90%CI=.055–.062). The ΔCFI supported strict factorial invariance, ΔCFI=.01, across groups; no significant group differences were found between factor loadings, measurement intercepts, or item residuals between English speakers and Spanish speakers.
Conclusions
This study extends the existing confirmatory factor analysis results of the SIP by providing additional data to inform the utility of the SIP among Hispanics. Strict factorial invariance between Spanish and English speakers is necessary to: conclude the underlying constructs have the same meaning across groups; test for group differences in the latent variables across groups; and presume group differences are attributable only to true differences between groups. Thus, the SIP is strongly supported for evaluating the effectiveness of alcohol treatment among Hispanics.
This study examined if alcohol expectancies (assessed with the Comprehensive Effects of Alcohol–Brief Form) were prospectively related to negative consequences (assessed with the Rutgers Alcohol Problem Index) and if these associations varied by gender. Data were collected from 558 first-year college students at a university in the south-eastern United States as part of an intervention study conducted during their initial residence hall meetings of the fall semester of 2007. Only those students who used alcohol and completed both baseline and 3-month follow-up surveys were included in the analyses (n = 347). Mixed-model multivariate analyses indicated that higher sexuality and tension reduction expectancies were prospectively related to more alcohol consumption–related negative consequences for males but not for females. Findings suggest that intervention efforts to prevent problem drinking would benefit from being gender-specific. The study's limitations are noted.
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