An Additional Consideration of Reliability and Validity of the Differentiation of Self Scale in Two Domains

Abstract

This study addressed the insufficient verification of reliability and validity of the Differentiation of Self Scale in Two Domains (DSS-2D). Although the DSS-2D is the first measure in Japan that satisfies the three requirements (corresponding to two domains, applicable to a wide range of adolescents, and a moderate number of items), verification of reliability and validity of the DSS-2D has remained insufficient. Two questionnaire surveys were conducted with university students (n = 70 at T1, n = 68 at T2). The interval of the surveys was one month. The results indicate that the DSS-2D had sufficient test-retest reliability and concurrent validity in each domain of differentiation of self. These results provide support for the DSS-2D as a valid and adequate measure for use in Japan.

Decision Maker Profiling Using Their Mental Behavior Pattern

“…Messina et al ( 2018 ) examined the impact of counseling on Bowenian differentiation of self. Kudo ( 2018a , b ) reported on a study of feasibility and reliability of profiling, anticipated by the differentiation of self- scale, and confirmed by anamnesis performed directly with the patients. Vargas et al ( 2018 ) correlated the instrument for measuring differentiation of self with Gordon's personality instrument.…”