Profile correlations are sometimes used to quantify personality trait similarity between relationship partners. These coefficients are then used to test whether similar couples are happier couples. The current paper describes several different methods of calculating profile correlations and outlines procedures for testing whether these coefficients are related to marital adjustment in a sample of 1643 couples. There was little evidence that profile correlations were related to marital adjustment after accounting for normativeness (i.e., the degree to which an individual's profile matched the typical personality profile) and when accounting for each individual's personality attributes. Results suggest that researchers using profile correlations should be cautious given that the interpretation and psychological meaning of results often depend on how the coefficients are calculated.
Bibliographical noteFunding Information:
This research was funded in part by USPHS Grants # DA05147, AA09367, and AA11886, DA13240, and MH65137 .
- Marital adjustment
- Personality traits
- Profile correlation
- Profile similarity