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Improving Communication with People with an Intellectual Disability: The content validation of the Biala-II profile

This study explores the content validity of a profile used to describe the communication behaviour of people with intellectual disabilities. The profile, named Biala-II - a Wiradjuri (an Australian Aboriginal language) word for "I understand you" - makes use of the knowledge of informants who are able to provide specific and detailed information on the ways in which a person communicates. This information can be used by ''communication partners'' to guide their interactions with a person whom they do not know well. Five samples of experts - parents, researchers, residential workers, speech pathologists, and special education teachers - rated 16 "best practice" indicators and then rated Biala-II in relation to these indicators. They also answered questions about specific features of the profile with attention to the methodology employed and the likelihood that its use would improve communication with people with an intellectual disability. The results reveal a high level of support for the profile.