Structure of interpersonal construct systems: One system or many?

We report three studies in which we examined the structure of interpersonal construct systems. We attempted to identify (a) the degree to which individuals' differentiation in the constructs they used to construe themselves paralleled the differentiation in the constructs they used to construe other and (b) the differences and similarities in the content of constructs used by subjects to construe themselves, liked peers, and disliked peers. In addition, we compared the content of the liked- and disliked-peer constructs with those used by employees construing co-workers in a previous study. Findings indicated that Ziller, Martell, and Morrison's (1977) checklist measure of self differentiation was weakly correlated in the first sample and uncorrelated in the second sample with Crockett's (1965) Role Category Questionnaire (RCQ), a measure of other differentiation. Differentiation scores from the other and self versions of the RCQ were moderately correlated. Content analyses revealed that self constructs were drawn largely from the same pool as those used in describing liked and disliked peers; they were more similar to the liked-peer constructs than the disliked-peer ones, but also drew heavily on the disliked-peer construct pool. Constructs used to describe liked and disliked peers were very similar to those used to describe co-workers but were clearly influenced by context. To account for the findings, we suggest that constructs become meaningful and thus prominent in a particular domain because of their usefulness for the particular construal tasks encountered in that domain.