Development of an Interpersonal Dependency Scale: A Positive View of Dependency

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  • 青年期後期における依存性の適応的観点からの検討
  • セイネンキ コウキ ニ オケル イゾンセイ ノ テキオウテキ カンテン カラ ノ ケントウ

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Abstract

In the present study, we conceptualized immature and non-adaptive dependency as active and productive. Our first purpose was to develop an Interpersonal Dependency Scale, and to examine its reliability and validity. Our second purpose was to reexamine the concept of dependency by investigating the relation between self-confidence and self-evaluations regarding personal decision-making ability. A 20-item Interpersonal Dependency Scale (IDS), consisting of 2 sub-scales (Affectional Dependency and Instrumental Dependency) was developed, based on a factor analysis of 447 college students' responses to a questionnaire. Both Cronbach's alpha coefficient and test-retest correlations were sufficient to support the reliability of the Scale. Affectional Dependency and Affiliation Motivation, as well as Instrumental Dependency and Support Seeking, were positively correlated. These findings suggest that the Scale has high construct validity. Participants who reported high dependency tended to report trusting others more. In particular, women who reported high dependency tended to show more self-confidence. These findings suggest that dependency has positive aspects. Conversely, participants who reported high dependency had low evaluations of their decision-making ability.

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