The Adult Repetitive Behaviours Questionnaire-2 (RBQ-2A): A Self-Report Measure of Restricted and Repetitive Behaviours
Sarah L Barrett, Mirko Uljarevic, Emma K Baker, Amanda L Richdale, Catherine RG Jones, Susan R Leekam
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS | SPRINGER/PLENUM PUBLISHERS | Published : 2015
In two studies we developed and tested a new self-report measure of restricted and repetitive behaviours (RRB) suitable for adults. In Study 1, The Repetitive Behaviours Questionnaire-2 for adults (RBQ-2A) was completed by a sample of 163 neurotypical adults. Principal components analysis revealed two components: Repetitive Motor Behaviours and Insistence on Sameness. In Study 2, the mean RBQ-2A scores of a group of adults with autism spectrum disorder (ASD; N = 29) were compared to an adult neurotypical group (N = 37). The ASD sample had significantly higher total and subscale scores. These results indicate that the RBQ-2A has utility as a self-report questionnaire measure of RRBs suitable ..View full abstract
Awarded by Economic and Social Research Council
Sarah Barrett was supported by a joint Ph.D. studentship from the School of Psychology, Cardiff University, and the Economic and Social Research Council. In addition, Study 2 was partially funded by an APEX Trust for Autism Ph.D. grant. The authors would like to thank Danielle Soliman for assistance with recruitment and data collection in Study 2. The authors would also like to thank all of the participants across both studies.