The criterion validity of the Waring Intimacy Questionnaire in a psychiatric inpatient sample

The Waring Intimacy Questionnaire (WIQ) is a 90-item self-report instrument for assessing the quality and quantity of marital intimacy. It provides a profile of the marital relationship on eight subscales as well as providing a Total Intimacy score. The WIQ is shown to have the internal structure predicted by its underlying conceptual model. In this study, it was administered to a psychiatric inpatient sample along with the Marital Satisfaction Inventory (MSI), the Short Marital Adjustment Test (SMAT), and the Dyadic Adjustment Scale (DAS). Results suggested that the WIQ demonstrated criterion validity with respect to these other instruments.