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    Interpersonal reactivity index: Measurement of empathy multidimensionaly
    (2007) Engeler, Alper; Yargıç, L. İlhan
    Objective: The purpose of that study is to report reliability and psychometric properties of Turkish version of Interpersonal Reactivity Index that consists of four subscales and measures of different dimensions of empathy. Method: Undergraduate students who are registered in two colleges received Interpersonal Reactivity Index. After pilot testings, Interpersonal reactivity Index were given 214 volunteered undergraduate student [95 men, 116 women, 7 neglected their gender]. Majority of them was single [%98.1] and their age were between 18 and 27 [M = 20.96, SD = 1.52]. Mean inter-item correlations and internal consistencies [Standardized item alphas] of subscales of Interpersonal Reactivity Index was computed and corrected item total correlations was reported based on item analysis. Inter-correlations of subscales and their correlations with gender are reported to evaluate their preliminary validity. In order to assess test-retest reliabilities of the four subscales, an independent sample of undergraduate students [n=40] completed Interpersonal reactivity Index twice with the interval of 20-24 days and test-retest reliabilities computed. Findings: Internal consistencies of all four subscales were satisfactory [.60-.76]. Mean inter-item correlations showed that subscales had homogenous content [.17-.32]. In item analysis, three items revealed relatively poor performance. However, means of corrected item-total correlations was high for all subscales [.32-.49]. Inter-correlations of subscales were consistent with the literature. Test retest correlations were in acceptable range [.66-.80]. Discussion and Conclusion: Subscales of Interpersonal Reactivity Index had excellent psychometric properties. Although three items performed relatively poorly, these items contributed the whole subscales. In addition, intercorrelations of subscales and their correlations with gender were consistent with expectancies and the literature. Further validation of Interpersonal reactivity Index and its factor structure can be subject of prospective studies.