Models of the self and other: Fundamental dimensions underlying measures of adult attachment.

Three studies assessed the construct validity of the self- and other-model dimensions underlying the 4-category model of adult attachment (Bartholomew, 1990). Five methods were used to assess the hypothesized dimensions: self-reports, friend-reports, romantic partner reports, trained judges' ratings of peer attachment, and trained judges' ratings of family attachment. In each study, the convergent and discriminant validity of the dimensions were assessed by multitrait-multimethod matrices and by confirmatory factor analysis. Study 2 related the latent attachment dimensions to theoretically relevant outcome latent variables