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01.10.2011 | Original Article

Predicting Condom Use Using the Information-Motivation-Behavioral Skills (IMB) Model: A Multivariate Latent Growth Curve Analysis

verfasst von: Jennifer L. Walsh, Ph.D, Theresa E. Senn, PhD, Lori A. J. Scott-Sheldon, PhD, Peter A. Vanable, PhD, Michael P. Carey, PhD

Erschienen in: Annals of Behavioral Medicine | Ausgabe 2/2011

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Abstract

Background

The Information-Motivation-Behavioral Skills (IMB) model often guides sexual risk reduction programs even though no studies have examined covariation in the theory’s constructs in a dynamic fashion with longitudinal data.

Purpose

Using new developments in latent growth modeling, we explore how changes in information, motivation, and behavioral skills over 9 months relate to changes in condom use among STD clinic patients.

Methods

Participants (N = 1281, 50% female, 66% African American) completed measures of IMB constructs at three time points. We used parallel process latent growth modeling to examine associations among intercepts and slopes of IMB constructs.

Results

Initial levels of motivation, behavioral skills, and condom use were all positively associated, with behavioral skills partially mediating associations between motivation and condom use. Changes over time in behavioral skills positively related to changes in condom use.

Conclusions

Results support the key role of behavioral skills in sexual risk reduction, suggesting these skills should be targeted in HIV prevention interventions.

Because Mplus does not allow for the calculation of standardized, bootstrapped confidence intervals for covariances, this confidence interval was calculated by hand using the MLR standardized standard errors.

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Titel: Predicting Condom Use Using the Information-Motivation-Behavioral Skills (IMB) Model: A Multivariate Latent Growth Curve Analysis
verfasst von: Jennifer L. Walsh, Ph.D
Theresa E. Senn, PhD
Lori A. J. Scott-Sheldon, PhD
Peter A. Vanable, PhD
Michael P. Carey, PhD
Publikationsdatum: 01.10.2011
Verlag: Springer-Verlag
Erschienen in: Annals of Behavioral Medicine / Ausgabe 2/2011
Print ISSN: 0883-6612
Elektronische ISSN: 1532-4796
DOI: https://doi.org/10.1007/s12160-011-9284-y

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Predicting Condom Use Using the Information-Motivation-Behavioral Skills (IMB) Model: A Multivariate Latent Growth Curve Analysis