The Environmental Rating Scale (ERS): a measure of the quality of the residential environment for adults with autism.
The ERS is a quick, reliable snapshot of how autism-friendly any group home really is.
01Research in Context
What this study did
The team built a 25-item rating scale for group homes. They called it the Environmental Rating Scale (ERS).
Trained observers toured the adult autism programs in New Jersey. They scored things like privacy, choice, and staff respect.
Two raters visited each home twice, two months apart. The scale was also given to 129 visitors and 97 direct-care staff.
What they found
The ERS hung together as one clean factor. Internal consistency was high (alpha = .91).
Inter-rater agreement hit r = .88. Scores stayed stable across the two-month window.
Homes designed for autism scored higher than regular intellectual-disability homes. Higher ERS also tracked with better staff knowledge and friendlier visitor impressions.
How this fits with other research
Mumbardó-Helles et al. (2017) meta-analysis shows that small setting details shift self-determination scores for adults with ID. ERS gives you a quick way to capture those details.
Lyall et al. (2025) found Black autistic children are under-diagnosed despite equal trait levels. Use the ERS to check if minority adults are also placed in lower-quality homes.
Ceylan et al. (2021) link blood markers to autism severity. Pair those lab data with ERS scores to see if better settings lower stress biomarkers.
Why it matters
You now have a free, 10-minute tool that tells you if a residence feels respectful, structured, and autism-friendly. Use it during intake, annual reviews, or when parents ask, “Is this the right place?” A single number can guide funding requests, staff training, or even lease renewals.
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02At a glance
03Original abstract
This study used classical test theory to assess the psychometric properties of the Environmental Rating Scale (ERS), a measure specifically designed to assess the treatment programs in residential settings that serve individuals with autism. Results of the confirmatory factor analysis support the presence of a single factor represented by the total score. The reliability of the measure was demonstrated by assessments of the internal consistency, stability, and interrater reliability. Preliminary analysis of the validity of the ERS indicates that this measure discriminates between treatment settings designed specifically for individuals with autism and those designed for other populations of developmentally handicapped clients and family homes. The ERS was also significantly positively correlated with a measure of the caregiver's knowledge about autism and a visitor's global impression of the desirability of the setting as a place to live.
Research in developmental disabilities, 1998 · doi:10.1016/s0891-4222(98)00012-2