Validation of the repetitive and restricted behaviour scale in autism spectrum disorders

Abstract

Repetitive and restricted behaviours represent a common problem for various psychiatric syndromes, especially in autistic spectrum disorders, and they include a wide range of heterogeneous behavioural manifestations. An accurate and standardized description of these behaviours is needed to advance the understanding of this complex and heterogeneous clinical dimension of autism. The present article reports the reliability and validity studies of a new assessment scale: the repetitive and restricted behaviour scale. 145 subjects with autism spectrum disorders were assessed using the RRB scale. The RRB scale has good interrater reliability, internal consistency and content validity. Factorial analysis produced four clinically meaningful factors, i.e. "sensorimotor stereotypies", "reaction to change", "restricted behaviours" and "modulation insufficiency". The RRB scale has good psychometric qualities and constitutes a real breakthrough towards a neurofunctional approach to autistic disorders. It should be valuable for research and treatment, and in clinical practice.

22q13 deletion syndrome: communication disorder or autism? Evidence from a specific clinical and neurophysiological phenotype

“…Considering RRBS ranges, we observed that even the highest individual scores remained very low, indicating very few repetitive and restricted behaviours. Thirteen patients had a 0 score for Factor 2, which has been shown to be the most specific for autism 20 . Two others had 1 and the remaining three had 4.…”

“… The Behavioural Summarized Evaluation (BSE) 19 focused on factor 1, which comprises the 13 most relevant items for autism diagnosis. Repetitive and Restricted Behaviour Scale (RRBS) 20 . Factor 1 (F1) is the sum of 11 items assessing “sensorimotor stereotypies”.…”

The diuretic bumetanide decreases autistic behaviour in five infants treated during 3 months with no side effects

“… RDEG the regulation disorder Evaluation grid is a French scale of activity (96) that enables to detect the level of dys‐regulation, and the slowness of response of the infants (2). The Repetitive and Restricted Behaviour (RRB) scale (24) is a 35‐item standardized checklist that allows item rating on a 5‐point scale from 0—the behaviour is never expressed by the person—to —the behaviour is severely expressed and characteristic of the person). Factorial analysis produces four clinical meaningful factors, i.e.…”

“…The Repetitive and Restricted Behaviour (RRB) scale (24) is a 35‐item standardized checklist that allows item rating on a 5‐point scale from 0—the behaviour is never expressed by the person—to —the behaviour is severely expressed and characteristic of the person). Factorial analysis produces four clinical meaningful factors, i.e.…”

Urinaryp-cresol is elevated in young French children with autism spectrum disorder: a replication study

“…Autistic behaviors were assessed using the Autism Diagnostic Observation Schedule (ADOS) (Lord et al, 2002), the Autism Diagnostic Interview -Revised (ADI-R) (Rutter et al, 2003), the Children Autism Rating Scales (CARS) (Schopler et al, 1986), the É valuation des Comportements Autistiques -version révisée (ECA-R) (Barthélémy et al, 1997), the É chelle d'évaluation des Comportements répétés et restreints (EC2R) (Bourreau et al, 2009) and the É valuation Fonctionelle des Comportements -version revisée (RFC-R) (Adrien et al, 2001). I.Q.…”