DeLand, L., Strongin, D. L., Schwartz, R. C. (2004) The Development of a Personality Scale Based on the Internal Family Systems Model. Journal of Self Leadership, 2(1), 1-14.

Abstract: The purpose of this study was to develop a new measure based on the Internal Family Systems (IFS) model that would be useful for clinical and research purposes.  Adults from a variety of settings (N = 1174) volunteered to rate how frequently they experienced various thoughts and feelings on a self-report questionnaire.  Cronbach’s alpha, Pearson product-moment correlations, partial correlations, and factor analysis were used to examine the internal reliability and construct validity of the scale.  A 57-item IFS Scale with 10 subscales and a 25-item Self Scale were developed.  Both of the measures were found to have adequate internal reliability and to reflect meaningful group differences consistent with IFS theory.



DeLand, L. (Winter 2003/2004) The Quest. Self to Self Newsletter 9(1) 

This article describes the development of the IFS SCALE in the language of a mythical quest.






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