Examination of Construct Validity and Reliability of Two Scales for Attitudes Toward Sexual Expression and Behavior of Adults with ID

Abstract

This study aimed to identify the factor structure of two questionnaires : the Japanese version of the Attitudes to Sexuality Questionnaire （for individuals with Intellectual Disability : ASQ–ID） and the Japanese version of the Attitudes to Sexuality Questionnaire （for individuals from the General Population : ASQ–GP） , which are composed of items from the ASQ-ID and ASQ-GP developed by Cuskelly and Guilmore （2007） , along with some additional questions. This study also aimed to examine the construct validity and reliability of the two Japanese instruments. A web-based survey was conducted with people from the general community, with 257 valid responses obtained （of which 129 questionnaires used “ ”women or “girls” as the subject in the items and 128 used “ ”men or “boys”）. Through an exploratory factor analysis, three factors were extracted for each instrument. The factors for Japanese ASQ-ID were labeled “Control and regulation of sexuality,” “Sexual rights,” and “Life with a partner and parenting.” For the Japanese ASQ-GP, the extracted factors were labeled “Sexual rights,” “Sexual pleasure,” and “Control and regulation of sexuality.” Though the Japanese ASQ-ID and Japanese ASQ-GP showed different factors from those of the instruments developed by Cuskelly and Guilmore（2007） , possibly because of additional items and different family norms in Japan, this study confirmed their construct validity and reliability.