Psychometric Evaluation of the HIV Disclosure Belief Scale: A Rasch Model Approach

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• 作者：Jinxiang Hu ; Julianne M. Serovich ; Yi-Hsin Chen ; Monique J. Brown…
• 关键词：HIV ; Serostatus disclosure ; MSM ; Validity
• 刊名：AIDS and Behavior
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：21
• 期：1
• 页码：174-183
• 全文大小：
• 刊物类别：Medicine
• 刊物主题：Public Health; Health Psychology; Infectious Diseases;
• 出版者：Springer US
• ISSN：1573-3254
• 卷排序：21

文摘

This study provides psychometric assessment of an HIV disclosure belief scale (DBS) among men who have sex with men (MSM). This study used baseline data from a clinical trial evaluating the effectiveness of an HIV serostatus disclosure intervention of 338 HIV-positive MSM. The Rasch model was used after unidimensionality and local independence assumptions were tested for application of the model. Results suggest that there was only one item that did not fit the model well. After removing the item, the DBS showed good model-data fit and high item and person reliabilities. This instrument showed measurement invariance across two different age groups, but some items showed differential item functioning between Caucasian and other minority groups. The findings suggest that the DBS is suitable for measuring the HIV disclosure beliefs, but it should be cautioned when the DBS is used to compare the disclosure beliefs between different racial/ethnic groups.