The Teacher Behavior Questionnaire was designed to measure the nature of the organization structure of schools in terms of the behavior of teachers as observed by fellow teachers on a school staff. The development of the Questionnaire consisted of modifying the School Organizational Inventory (Punch) in several ways: each item was changed to explicitly refer to the behavior of teachers within the school; the original five point rating scale (Always True to Never True) was changed to a six-point scale (Strongly Disagree to Strongly Agree); and the instructions were changed to reflect the emphasis on teacher behavior. The questionnaire was then administered to the elementary teachers in a Canadian urban school district, and the resulting data were analyzed in terms of the intercorrelations among subscales, reliability, and the ability to discriminate. As expected from previous research with the School Organizational Inventory, the behavior of these elementary school teachers was found to consist of two dimensions: bureaucratic and professional. (BW)