The study focused on defining the needs of migrant and former migrant students where "need" was defined as a difference between their performance and that of nonmigrant students. Migrant students' needs were assessed in seven domains of development--background, social, ability, self-concept, achievement, gross motor, and fine motor. During January 1977, 625 students in 9 schools were administered the Boehm and Culture Fair tests, the Self-Observation Scales, Metropolitan Readiness Test, Iowa Test of Basic Skills, Test of Academic Progress, and Career Maturity Inventory. Information for the background and social domains was obtained through the teacher responses on the Student Information Forms; the Gross and Fine Motor proficiency were both ascertained from the Physical Fitness Survey. Analyses were performed for 5, 7, 10, 13, and 16 year olds, for males and females, and for migrants, former migrants, and nonmigrants. Findings included: economic needs and communication problems interfered with education more often for migrant students than for nonmigrant students; migrant students scored lower on explosive power at age 7, cardiovascular endurance at age 13, dynamic arm strength at age 13, and hand-eye coordination at ages 7 and 13; former migrant students repeated one or more grades more often than nonmigrant students; and former migrant students had significantly lower reading and mathematics scores than nonmigrant students. Statistical analyses of teacher responses and test results, and descriptions of the instruments used are appended. (NQ)