Interpersonal Dependency Inventory: Its Construct Validity and Prediction of Dysphoric Mood and Life Functioning via Negative Life Events

Masayo Uji, Yukihiro Takagishi, Keiichiro Adachi, Toshinori Kitamura

Department of Bioethics, Kumamoto University Graduate School of Life Sciences, Kumamoto, Japan.
Department of Human Psychology, Kansai University of International Studies, Miki, Japan.
Department of Psychology, Kobe Shoin Women’s University, Kobe, Japan.
Kitamura Mental Health Institute Tokyo, Akasaka, Japan.

DOI: 10.4236/psych.2013.412134                

Abstract

Previous Dependency Inventory (JIDI) as well demonstrates how the interpersonal attitudes assessed by the JIDI generate interpersonal negative life events (NLEs) and therefore results in dysphoric moods and poor life functioning. The subjects of this study were 467 Japanese university students. The JIDI was administered at Time 1, and the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM) was administered at Time 2 for the purpose of assessing dysphoric mood and life functioning. NLEs occurring between Times 1 and 2 were evaluated. The three-factor structure of the JIDI was confirmed by confirmatory factor analysis. The structural equation modeling demonstrated that of the three factors, only one, “emotional reliance”, predisposed individuals to dysphoric mood and poor life functioning, both directly and indirectly, via interpersonal NLEs. Although the other two factors did not increase vulnerability to interpersonal NLEs or dysphoric mood, “lack of social self-confidence” worsened general functioning, and “assertion of autonomy” led to poor functioning in close relationships, both directly. Furthermore, “assertion of autonomy” decreased anxiety levels. As to gender differences, simultaneous analysis of multi-groups showed that female subjects were more likely to become anxious following interpersonal NLEs.

Keywords

Japanese Version of the Interpersonal Dependency Inventory; Factor Structure; Negative Life Events; Mental Health Problems

Conflicts of Interest

The authors declare no conflicts of interest.

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