Factor structure of the Basic Interest Scales by gender across time.

Studied gender differences in the factor structure of the Basic Interest Scales (BISs) across time. Nine correlation matrices, previously published in support of the BISs on the Strong Vocational Interest Blank–Strong-Campbell Interest Inventory, were factor analyzed. Results describe a clear factor structure for the Basic Interest Scales. However, scale loadings did not support General Occupational Theme classifications of BISs. Similarities between men and women were observed in extracted factors and BISs with low communality estimates. Gender differences were found for between-factor correlations. A relatively stable factor structure was traced over time and was found to exist prior to the employment of women in traditionally restricted male occupations. Implications for counselors are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)