Brief Report: Feasibility and Preliminary Efficacy of a Behavioral Intervention for Minimally Verbal Girls with Autism Spectrum Disorder.

Cariveau et al. (2019) ran a tiny four-week RCT with minimally verbal girls who have autism. The girls got a tight, clinician-led ABA package every day.

Parents were not the therapists. Trained staff ran the sessions. The team asked: can one month of structured ABA move communication scores at all?

The girls’ word use and social eye-contact jumped. Within-group effect sizes were large, even though the study was only four weeks long.

No serious side effects showed up. The short program looked doable for families and staff.

Fernell et al. (2011) clouds the picture. In 208 Swedish preschoolers, two years of high-intensity ABA did not beat low-intensity ABA on adaptive skills. That study looked at different ages and broader skills, so the clash is more apparent than real.

Rouhandeh et al. (2022) and Klusek et al. (2022) extend the idea to parents. Both used the same four-week or twelve-week window and also saw communication gains when moms and dads did the coaching. Their results say the brief timeline works even when you hand the program to caregivers.

Baharav et al. (2008) did it first in a single case. One preschooler watched parent videos through an FM trainer for four weeks and talked more. Tom’s RCT now backs that tiny 2008 pilot with controlled data.

If you serve minimally verbal girls with autism, you now know a four-week clinician block can give a quick boost. Use it as a sprint before longer parent training, or to show funders that brief, focused ABA still moves the needle. Track words and eye-contact weekly; you may see change before the month is up.