Abstract
BackgroundTo reliably evaluate the acceptance and use of computer-based prostate cancer decision aids (CBDAs) for African-American men, culturally relevant measures are needed. This study describes the development and initial psychometric evaluation of the 24-item Computer-Based Prostate Cancer Screening Decision Aid Acceptance Scale among 357 African-American men.MethodsExploratory factor analysis (EFA) with maximum likelihood estimation and polychoric correlations followed by Promax and Varimax rotations.ResultsEFA yielded three factors: Technology Use Expectancy and Intention (16 items), Technology Use Anxiety (5 items), and Technology Use Self-Efficacy (3 items) with good to excellent internal consistency reliability at .95, .90, and .85, respectively. The standardized root mean square residual (0.035) indicated the factor structure explained most of the correlations.ConclusionsFindings suggest the three-factor, 24-item Computer-Based Prostate Cancer Screening Decision Aid Acceptance Scale has utility in determining the acceptance and use of CBDAs among African-American men at risk for prostate cancer. Future research is needed to confirm this factor structure among socio-demographically diverse African-Americans.
Highlights
To reliably evaluate the acceptance and use of computer-based prostate cancer decision aids (CBDAs) for African-American men, culturally relevant measures are needed
Given the need for and utility of a reliable and valid computer-based decision aid (CBDA) for Prostate cancer (PrCA), this study described the development and tested the psychometric properties of the Computer-Based Prostate Cancer Screening Decision Aid Acceptance Scale among African-American men
This psychometric study used cross-sectional data from a pilot study conducted to assess the efficacy of iDecide, a computer-based decision aid (CBDA) to prepare African-American men for informed decision making about PrCA screening
Summary
To reliably evaluate the acceptance and use of computer-based prostate cancer decision aids (CBDAs) for African-American men, culturally relevant measures are needed. This study describes the development and initial psychometric evaluation of the 24-item Computer-Based Prostate Cancer Screening Decision Aid Acceptance Scale among 357 African-American men. In order to engage in informed decision making, African-American men need plain language PrCA knowledge information and adequate decision self-efficacy [16]. Self-efficacy refers to the level of confidence an individual possesses to actively involve himself, to the extent that he desires, in the PrCA screening decision-making process [18]. Prior studies indicate that African-American men who participate in informed decision-making interventions for PrCA screening often experience increased PrCA knowledge and decision self-efficacy [19], which may equip them to actively participate in informed decision making. Older AfricanAmericans with low incomes and low education attainment are the least likely to have access to computer or mobile technologies [23, 24]
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