Exploratory and Confirmatory Factor Analyses and Invariance Assessment of the Perceived Powerlessness Scale Among Youth in Baltimore

Published in: Journal of Health Psychology [Epub April 2018]. doi: 10.1177/1359105318769349

by Sahnah Lim, Terrinieka W. Powell, Qian-Li Xue, Vivian L. Towe, Ralph B. Taylor, Jonathan Ellen, Susan G. Sherman

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Generalized perceived powerlessness is an important psychosocial construct that determines a wide range of health behaviors and outcomes. This study has two aims: (1) examine the structure of the newly developed perceived powerlessness scale using exploratory and confirmatory factor analyses and (2) assess the scale's invariance across key demographic variables using multi-group confirmatory factor analysis among a random household sample of African American and White youth (aged 15–24 years) residing in Baltimore, MD. Our study results demonstrated that the powerlessness scale is valid among a demographically diverse sample of urban youth, showing promise for use in future health behavior and outcome studies.

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