Adequacy coefficients can be derived by calculating the cosines of the angles between factors' actual and theoretically expected locations within factor space. The use of adequacy coefficients during instrument development is discussed. The development of an instrument to measure thinking interests provides a heuristic framework for the…

This paper presents a method which can be used to obtain evidence that the concepts rated on semantic differential scales are appropriate for given study. An analysis of six semantic differential concepts, as perceived by 168 graduate education students, is presented; variations of the method are discussed. (Author/GSK)

The comparability of seven sets of factor structure studies reported in previous research with the Bem Sex-Role Inventory was evaluated. The inventory's primary factors were reproduced in the studies, although the masculine scale was somewhat less invariant than was the feminine counterpart. (SLD)