Abstract
The purpose of this study was to investigate the effects of personality similarity on interpersonal attraction in case of the affective value of traits between an introversion-type stimulus person and an extraversion-type stimulus person being equivalent. Sixty male and female undergraduates participated in the experiment as subjects. They rated their personality on the version test. Then, they were presented a stimulus person's response on the same test which represented introversion or extraversion. Finally subjects were asked to rate attraction toward the stimulus person.
Personality similarity had the positive effects on some attraction scales. In addition, significant interactions between subjects'version and personality similarity were found, which indicated that the different version-type stimulus person was preferred according to the content of attraction scales. As a result, the proposition of Ajzen (1977) that personality similarity has no direct effect on attraction was dismissed.
