The Kaiser Measures of Sampling Adequacy (MSA) were derived for a typical six-concept Semantic Differential. The overall indices indicated that both concept and total correlation matrices would lead to comparable decisions regarding the psychometric quality of the sample data sets. The individual MSA's, however, revealed considerable variability for some scales placing several in a range which would make them suspect in a psychometric sense. It was recommended that the concepts of psychometric adequacy be used in determining the efficacy of one's Semantic Differential data for factor analytic procedures. (Author)