Main purposes of this study were to construct object relations scale for young adults, and to examine validity of the scale. In Study 1, factor analysis on the data of 566 participants found five factors: insufficiency of intimacy, superficiality in interpersonal relations, egoistic manipulation, excessive need for identification, and abandonment anxiety. They had a simple structure with a total of 29 items. In Study 2, validity of the scale was examined with a new sample of 1041 participants. Data analysis showed validity in terms of the factor structure of the subscales, and gender and age differences found in them were in the expected patterns. The relationship to personality traits was examined with five factor scores of NEO-FFI. By and large, the correlation coefficients between the subscales and five factor scores were in the expected directions, indicating correlational validity of the scale.
Key words: object relations, scale construction, factor analysis