How important is it for a child to receive 40 hours of behavioral treatment per week vs. 10 or 20 hours?
To date no one has replicated the findings of the 1987 study without treatment intensity approaching 40 hours per week of structured intervention. From a meta-analysis presented by Sigmund Eldevik at the Association for Behavior Analysis, a clear dose-response relationship emerged between the number of weekly hours of structured intervention and performance on standardized cognitive assessments after two years of clinic-directed behavioral treatment.
