This is the report of a study which investigated the relationship between interethnic curriculum and racial prejudice in a group of first grade children who had been exposed to interethnic instructional curriculum in kindergarten and first grade. A review of literature on the subject clarifies possible confounding variables to be considered in such a study and indicates only two measures of racial attitudes at the primary grades or early childhood levels--the "doll technique" and the Preschool Racial Attitude Measure II (PRAM II). A variation of the PRAM II method, employed in the research study of the first graders, is explained. The methodology, hypothesis, measurement, limitations, results and conclusions of this research study are described. It is shown that though the experimental group of children demonstrated statistically significant differences in attitudes toward ethnic minorities, they still prefer the white ethnic category to the black. Tables provide further statistical and comparative data. Also included are a list of references and additional information about the Ethnic Reference Scale. (EB)