Abstract
The short form of the Conners-Wells Adolescent Self-Report Scale (CASS:Short) is administered to 319 children and 844 adolescents to investigate whether the instrument can be used with respondents under the age of 12. Mothers of all respondents are asked to rate each child using a measure designed to assess a parallel set of problem behaviors. The factor structure of the CASS:Short is tested in both samples and is found to have good fit to the data. Mean levels ofADHDsymptomatology are also examined for possible sex and age effects, as was the relationship between parent and self-report ratings. The overall results provide empirical support for the use of the CASS:Short with children ages 7 to 11.