Reliability and validity of the Japanese edition of the Defense Style Questionnaire 40.
Defense styles have a close relationship with ego development and psychopathology. The purpose of the present paper was to examine the reliability and validity of the Japanese edition of the Defense Style Questionnaire (DSQ-40; Andrews et al. 1993). Six hundred and six Japanese university students (348 female) completed the DSQ-40 and Maudsley Personality Inventory (MPI). The neurotic tendency had positive correlations with immature and neurotic defense styles and a negative correlation with the mature defense style. The extroversion tendency had positive correlations with the mature and neurotic defense styles and a negative correlation with the immature defense style. There was a significant test-retest correlation for all items of the DSQ-40 (n = 284). The results show that the Japanese version of the DSQ-40 had concurrent validity with the MPI and a test-retest reliability of 2 months, although there was some doubt about the validity of the factor structure of the DSQ-40. Therefore, the DSQ-40 is a useful scale in Japan to measure ego development and ego function through defense styles.
Faculty of Community and Human Service, Rikkyo University, Saitama, Japan. mmkhys@rikkyo.ne.jp
Momoko
M
Hayashi
Yuko
Y
Miyake
Kuninao
K
Minakawa
D000293:Adolescent; D000328:Adult; D003431:Cross-Cultural Comparison; D003674:Defense Mechanisms; D004532:Ego; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D009497:Neurotic Disorders / Q000175:diagnosis / Q000523:psychology; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011594:Psychometrics / Q000706:statistics & numerical data; D011599:Psychopathology; D015203:Reproducibility of Results; D013334:Students / Q000523:psychology