This 15-item teacher rating scale measures three behavior traits: task orientation (how a child attends to and stays with classroom activities), extraversion (how readily a child interacts with other people), and hostility (how a child responds to some of the adjustments and conflict problems encountered in group activities). The scale is based upon a behavioral model developed by Schaefer from factor analytic techniques. A teacher rates a child on fifteen seven-point scales, ranging from never to always; completing the measure takes five to ten minutes. Norms and reliability data are not included in this inventory; these data are available in ED 082 856. These scales were used in the final year of the Head Start Planned Variation Study and in the pilot year of the Project Home Start Study. (BW)