The Survey of Early School Adjustment Difficulty is a questionnaire best administered during the first six weeks of school and teachers are asked to report on children’s behavior during the first three weeks. Based on our initial work with this measure, the internal reliability was high (alpha = .91). For more information, see: Nathanson, L., Rimm-Kaufman, S.E., & Brock, L.L. (in press). Kindergarten adjustment difficulty: The Contribution of children’s effortful control and parental control. Early Education and Development.