In this study, a classroom observation technique was employed to examine the behaviors of a group of teacher-referred hyperactive children in order to determine the frequency of specific behaviors exhibited. The purpose behind the study was the further investigation of behavioral observation and intervention techniques used by other researchers as alternatives to prolonged medication therapy for hyperactive children. Subjects were 11 elementary school children in grades K through 2. The control group consisted of all classroom peers who, by virtue of their non-referral, were identified as not hyperactive. Subjects and controls were observed in the classroom and their behaviors charted using a time sampling procedure that recorded behavior frequency of 19 categories of behavior. Significant differences were found between groups on behaviors in seven categories: approval, volunteers, initiation to teacher, physical negative, play, inappropriate locale, and self-stimulation. In all of these categories, except volunteers, the control group had lower frequencies of occurrence. Having delineated the specific types of behavior that the hyperactive children engaged in more frequently, the authors suggested a behavioral intervention program be implemented to decrease or extinguish targeted behaviors. (Author/SB)