The purpose of this study was to determine whether motor inhibition, self-control, relationship with achievement model, dependency, self-concept, delay of gratification, and risk-taking constitute an achievement motivation construct for migrant preschool children. The subjects used to determine the relationship between the 7 traits and achievement motivation were 95 male and 100 female children between the ages of 3 years 9 months and 4 years 9 months. Most of the children in the study were Negro, with only 8 white children. Individual tests and observations by teachers and aides were the methods of measurement. A covergent-discriminant validation procedure was used for validating the 4 factors (cognition, self-control, relationship with achievement model, and dependency) which were established from the Pre-Kindergarten Scale through factor analysis. Convergent validities ranged from .53 to .28, while divergent validities ranged from .10 to .38. Multiple linear regression analysis was used to examine the relationship between the 7 motivational traits and achievement (as measured by the Cooperative Preschool Inventory). Separate analyses were conducted for boys and girls, and results of the study support this procedure of performing separate analyses for each sex. The research indicates that many of the same factors (self-concept, delay of gratification, self-control, and motor inhibition) which predict achievement for middle-class males also predict achievement for migrant preschool males. (LS)