In order to evaluate the Illinois program for the gifted, a study was conducted in which the Class Activities Questionnaire (CAQ) was administered to 3,138 students in Reimbursement Gifted Classes, Demonstration Gifted Classes and Average (Non Gifted) Classes (grades 6 through 12). The CAQ, which assesses both the cognitive domain (levels of thinking needed in class activities) and the affective domain (social and emotional conditions existing in the classroom), contained 30 items evaluating the dimensions of lower thought processes, higher thought processes, classroom focus, classroom climate, and student opinions. The CAQ was found to reveal clear variations in emphasis in both cognitive and affective domains. Results showed significant differences between Average and Gifted classes in the degree of emphases on higher thought processes, classroom focus, and classroom climate. Significant differences were also noted between Average and Gifted classes on the statistical factors of application, synthesis, enthusiasm, independence, memory, and test/grade stress. (RD)