This study examined the validity and reliability of the Sexual Addiction Scale of the Disorders Screening Inventory (DSI). The development of the DSI is described. The five characteristics of sexual addiction that underlie the scale and the items that measure each characteristic are described. Interscale correlations of 17 scales of the DSI demonstrated the independence of the Sexual Addiction Scale of the DSI. Inter-item correlations of the Sexual Addiction Scale support a five-characteristic view of sexual addiction. Coefficient alpha for the five-item Sexual Addiction Scale showed an internal consistency reliability of .83. A t-test of means demonstrated significant differences between the criterion group of 34 subjects who were self-identified as sexual addicts and two comparison groups consisting of clients presenting with a variety of mental health concerns.
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Carter et al. (1996) studied this question.