Examining Demographics in Randomized Controlled Trials of Group-Based Social Skills Interventions for Individuals with Autism Spectrum Disorder.

Safer-Lichtenstein et al. (2019) read every group social-skills RCT for autism they could find. They pulled 17 studies published between 2005 and 2017. They counted age, sex, race, IQ, and language level of each participant.

The trials mostly enrolled white boys with average or high IQ. Girls, non-white kids, and youth with intellectual disability were scarce. Half the papers never even reported household income or parent education.

McKenna et al. (2019) saw the same hole in a different pile of studies. Their review of academic interventions for students with emotional disturbance also found almost no data broken down by race or IQ.

Cox et al. (2015) showed that smaller, student-led groups boost engagement for kids with ASD. Yet the RCTs Jonathan audited rarely describe group size or teaching style, so we can’t tell if the tested programs used the very features that help.

Edgin et al. (2017) warned that teens with mild ID and social anxiety interpret peers negatively. These youth are exactly the kind left out of the social-skills RCTs, even though they may need the help most.

If your next client is a girl with ASD and mild ID, the gold-standard manual you pull off the shelf was probably tested on boys without ID. Check the sample description before you trust the norms. Push your district or clinic to track and report who gets the intervention. Wider recruitment now builds better evidence for everyone later.