Reliability and validity of the Japanese edition of the Defense Style Questionnaire 40
Article first published online: 3 MAR 2004
Psychiatry and Clinical Neurosciences
Volume 58, Issue 2, pages 152–156, April 2004
How to Cite
HAYASHI, M., MIYAKE, Y. and MINAKAWA, K. (2004), Reliability and validity of the Japanese edition of the Defense Style Questionnaire 40. Psychiatry and Clinical Neurosciences, 58: 152–156. doi: 10.1111/j.1440-1819.2003.01209.x
- Issue published online: 3 MAR 2004
- Article first published online: 3 MAR 2004
- Received 14 March 2003; revised 11 August 2003; accepted 17 August 2003.
- ego development;
- defense style questionnaire;
Abstract 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.