An extraction of a shortened version of the Minnesota Preschool Affect Checklist, Revised, a comparison of the structure, internal consistency, test-retest reliability, and stability of both versions, and, using the shortened measure, an examination of age, gender, and risk status differences in socioemotional behaviors, the relationship between emotion knowledge and both executive function and socioemotional behaviors, and of the relationship between socioemotional behaviors and early school adjustment and later kindergarten academic success of preschoolers, based on data from 352 3- and 4-year-olds attending private child care and Head Start programs, followed over time, and their parents