The Choice Questionnaire: A scale to assess choices exercised by adults with intellectual disability

Abstract
Although choice is widely regarded as an essential component of quality of life, researchers have made few attempts to develop and evaluate psychometrically sound instruments to measure the availability of choice to people with intellectual disability. This paper presents information on the development and evaluation of the Choice Questionnaire. The scale can be administered by interviewing the consumer or may be completed by a knowledgeable proxy. Used in either of these ways, the Choice Questionnaire was found to have very satisfactory reliability and validity. Its use as a research and evaluation tool is discussed.