The Personal Development Study (PDS) was administered to four diagnostic groups, which included 89 hospitalized alcoholics, 336 unmarried mothers, 159 college students, and 387 chronic institutionalized schizophrenics. The PDS data from the four groups were factor analyzed separately by Varimax rotation of principal component factors. Cluster analysis methods were used to compare the separate diagnostic group factors with the overall factors previously reported by Pishkin and Thorne (1977). Only a few close fits of the diagnostic group factors showed large differences in item composition, order of emergence of factors and size of loadings between groups. Because many items and factors could be interpreted in terms of several alternative theoretical systems, interpretations were based on the clinical meanings of items and clusters in terms of integration theory (Thorne, 1976).