In an effort to learn more about the child prone to anxiety when separated from his parents, 60 3-year-old, predominantly white, middle class children were subjects of a parent-teacher study. Each parent completed a scale of 25 items on which his child's anxiety was rated just prior to the child's entrance into nursery school. A teacher-rated scale was then devised to measure the child's separation reaction in the school and was completed for every child immediately at the end of each school day over a 2-week period. (Additional ratings were made later on in the year.) Results indicate that parental ratings of children before entry into nursery school correlate highly with the teachers' ratings. This suggests that separation anxiety prone children can be identified with considerable efficiency before their entry into nursery school. Although later ratings showed lower levels of anxiety in children, correlations remained significant. Tables comprise half the document. A copy of the Parental Anxiety Rating Scale is also included. (MK)