BRIEF REPORT: SELECTIVE BREEDING FOR PRINCIPAL COMPONENTS AND FACTORS BASED UPON BEHAVIORAL TRAITS

This is the first of three reports of a taxonomic investigation of person- ality based on a matrix of 600 personality questionnaire items represented equally by marker items derived from the personality trait systems developed by J. P. Guilford and R. B. Cattell. This report outlines the entire prsject (Sells, Demaree, and Will, 1968) and focuses on the factor structure of the total matrix with particular concern for the relative contributions and relations of the two sources. The second report will analyze in detail the separate factor structures found in the Guilford and Cattell trait markers, while the third will summarize the final factor identification, based on analyses of the total matrix and matrices representing the Guilford and Cattell systems.