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Kagan, J. (1965). Impulsive and Reflective Children: Significance of Conceptual Tempo. In J. D. Krumboltz (Ed.), Learning and the Educational Process (pp. 133-161). Chicago: Rand McNally & Company.

has been cited by the following article:

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

  AUTHORS: Koji Kudo

  KEYWORDS: Differentiation of Self, Domain Specific Validation, Interpersonal Domain, Intrapsychic Domain, Test-Retest Reliability

  JOURNAL NAME: Psychology, Vol.9 No.10, September 17, 2018

  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.