Parent-perceived autonomy-supportive experiences and basic psychological needs of people with complex support needs: Development and preliminary psychometric evaluation of two questionnaires.

Understanding and supporting basic psychological needs of persons with complex support needs is important but difficult because of communicative challenges . We developed and tested questionnaires to obtain parents' perspectives on autonomy support and basic psychological needs of autonomy, competence, and relatedness. : Two parent-informant questionnaires were developed, administered, and subjected to psychometric property analyses.