The Autism Treatment Evaluation Checklist Structure. The ATEC is a caregiver-administered questionnaire designed to measure changes in severity of ASD in response to treatment. A total score and four subscale scores are reported. Questions in the first three subscales are scored using a 0–2 scale.
What is ATEC score?
Each subcategory of the ATEC scale is scored using a 0–3 point scale as follows: 0= not a problem, 1=minor problem, 2= moderate problem and 3= serious problem. Total score ranges from 0 to 180. The higher the total score, the more impaired the participant.