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Table 1 Overview of previous studies on the effectiveness of the PEERS® parent-assisted curriculum for adolescents

From: The ACCEPT-study: design of an RCT with an active treatment control condition to study the effectiveness of the Dutch version of PEERS® for adolescents with autism spectrum disorder

Author

Design

N

Summary of significant findings per outcome measure

Laugeson et al. 2009 [15]

RCTa: Waitlist control group

33

Adolescent report: Improved social knowledge and social contacts

Parent report: Improvement in social skills

Laugeson et al. 2012 [14]

RCT: Waitlist control group

28

Adolescent report: Improved social knowledge, social contacts

Parent report: Improvement in social skills and reduction in social impairment

Schohl et al. 2014 [16]

RCT: Waitlist control group

58

Adolescent report: Enhanced social knowledge, social contacts and declined social anxiety.

Parent report: Reduction in social impairment as measured by the SRS

Yoo et al. 2014 [9]

RCT: Waitlist control group

47

Adolescent report: Improved social knowledge.

Parent report: decreased ASD symptoms on the Autism Developmental Observation Schedule (ADOS) and decreased depressive symptoms

Mandelberg et al. 2014 [17]

Pre- posttest design with follow-up

53

Adolescent report: Improved social knowledge and social contacts (1-5 year follow-up)

Parent report: Social functioning improvement and maintenance after (1-5 year follow-up)

Dolan et al. 2016 [18]

RCT: Waitlist control group

58

Adolescent report: Enhanced social skills knowledge

Observational measure: Improvement on behavioral observation (CASS) on subscale vocal expressiveness

Rabin et al. 2018 [10]

RCT: Waitlist control group

41

Adolescent report: Increased social get-togethers, greater empathy and had more knowledge of social skills.

Parent report: Improved social skills and reduced autism symptomology.

The effects maintained at a 16-week follow-up assessment.

Observational measure: Showed more social behavior (e.g. heightened engagement and question asking in conversations with a unknown peer)

Schum et al. 2018 [11]

RCT: Waitlist control group

72

Parent report: Improved social skills knowledge, reduced autistic mannerisms and improved social functioning after intervention, replicating these results for the delayed treatment group

  1. aRCT randomized controlled trail