PLoS ONE · 2014 · 62 citations · 26 references
A 39-item version of the HIV stigma scale used in a Swedish context showed satisfactory construct validity and reliability. Response alternatives are suggested to be slightly revised for items assuming the disclosure of diagnosis to another person. We recommend that people that have not disclosed should skip all questions belonging to the dimension personalised stigma. Our analysis confirmed construct validity of the instrument even without this dimension.
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A Rationale and Test for the Number of Factors in Factor Analysis
John L. Horn · Psychometrika · 1965 · 8.4K citations
Sample size in factor analysis.
Robert C. MacCallum, Keith F. Widaman, Shaobo Zhang et al. · Psychological Methods · 1999 · 4.6K citations