Out of the tradition of behavior analysis has come a system of behavioral measurement which is both sufficiently exact and sufficiently general to be used effectively in meeting the problems of educational accountability. The Standard Behavior Chart is a measurement tool that meets the specifications of frequency, celeration, sensitivity (in order to measure changes in the behavior of an individual child and all the behaviors of which individuals or groups are capable), and standardization (to permit direct comparison among the variables differentiating a number of situations. Four measures--frequency, accuracy, celeration and improvement index (a combination of accuracy and celeration)--are easily obtained from this chart and provide direct measures of both the quantity and quality of behavior and behavior change. The Standard Behavior Chart is most effective when it is made an integral part of the teaching process; teachers and students should be trained in its use so that it can aid in individualized evaluation, decision-making and planning. A high speed computer can be used in collating and analyzing the masses of data resulting from the use of the chart by teachers and students. Measures of benefit and efficiency can be obtained through analysis of the data. The Learning Abilities Development Program in North Carolina, which sought to screen first graders for potential learning deficiencies and give individualized service to each one targeted, utilized the Standard Behavior Chart successfully. (KM)