SDS(Zungの自己評価式抑うつ尺度)の質問文の表現に関連した応答バイアスの検証

Abstract

SDS(Self-rating Depression Scale)developed by Zung in 1965 is widely applied to psychiatric studies. The existence of the response bias in SDS, however, has been suggested by several researchers. The purpose of the present study was to examine precisely the response bias in the Japanese version of the SDS. Data from 2, 097 Japanese high school students are shown to illustrate the response bias related to the positive or negative expressions of items in the scale with statistical methods of analysis, together with several sets of empirical data from otherstudies. The findings were discussed in terms of statistical view. Apart from the main subjects, we point out some incorrectness of Zung(1967b)in Appendix.