2007 Volume 30 Issue 1 Pages 1_79-1_88
In the present study, we tried to standardize Japanese version of RAS (Rathus Assertiveness Schedule, RAS-J) that has 30 items and had already been standardized in Europe and America to measure the types of the self-expression in Japanese people, focused on the two-dimensional model of assertion.
The questionnaire was administered to 213 nurses in five hospitals in A prefecture. We got 212 valid responses in total, and the subjects were all female. The exploratory factor analysis with Promax rotation found the following four factors: Assertive, Non-assertive, Aggressive, and Passive aggressive factors which were the same as the conceptual framework. As a result of investigation of items based on the values of factor loadings and so on, RAS-J with 20 items was confirmd. We could certify high construct validity, and reliability by means of Cronbach's α of RAS-J.
These results agreed to the two-dimensional model of assertion in Japanese nurses. Further study is necessary for the establishment of RAS-J by increasing the numbers of subjects, including male subjects and the reexamining a Japanese translation of the RAS.
