Abstract
The aim of this methodological study was to extend Blatt, Wein, Chevron, and Quinlan,'s (1979) coding system for assessing levels of mental representations of others. Blatt devised a system for scoring spontaneous descriptions of parental figures on a scale that spanned five levels of object differentiation. A single level score was assigned. In this study a procedure was developed to generate scores for each of five representational levels, for two object descriptions, for each subject. The new procedure was based on the assumption that in each individual, all levels of differentiation are maintained albeit in varying proportions, The new coding method was tested in a contrast study in which the responses of a cohort of borderline patients were compared with those of a cohort of nonpsychiatric subjects. As predicted, all subjects were assigned scores at all five representational levels; however, the borderlines had a higher proportion of content units in the lower, least differentiated levels of object representation, and the nonpsychiatric subjects had higher scores at the more differentiated, conceptually complex levels. Results of the psychometric properties of the coding method are discussed. Work in progress to refine the method is outlined.