Data on problem solving collected within the framework of G. Eckblad's cognitive theory of affect (1981) are analyzed with 3-mode principal component analysis. Eight tasks with 6 judgment scales were completed by 32 13-year-old boys. The effectiveness of the TUCKALS principal components analysis method is discussed. (SLD)

Compares two basic variants of the sorting method: single-sort and multiple sort. The nature of individual differences in sorting, as well as sex differences, were also investigated. Stimulus materials were the 15 mutually exclusive kinship terms selected by Wallace and Atkins (1960). (RC)