The purpose of this research study was to build and pilot a psychometric instrument, the Primary Childhood School Success Scale (PCSSS), to identify behaviors needed for children to be successful in first grade. Fifty-two teacher responses were collected. The instrument had a reliability coefficient (Alpha) of 0.95, a mean of 13.26, and a variance of 11.01. The ratings of item totals were within close range. The teacher subjects noted sequentially writing the alphabet in lower and upper case letters, arranging pictures in order to tell a story, remaining in designated space, listening, and attending to a task as the most important behaviors. The least important behaviors indicated by this sample were placing a telephone call for help, knowing the dime coin and value amount, having no sleep problems, knowing birth date, and tying shoes. (Contains 31 references.) (Author)