People Place of Houston, Texas provides racially isolated elementary school children with exposure to various world cultures. The children who visit this center are selected from schools with a majority of Black, Anglo, or Mexican American children. Two major objectives of People Place are: the reduction of group isolation and discrimination, and the elimination and prevention of group and individual prejudice. The childrens' changes in attitude toward different cultures and ethnic groups were measured using doll play simulation. The results indicated greater positive attitude changes among children who had participated in the People Place experience, as compared to the control group. Black children exhibited significantly more attitude change than Mexican Americans; the amount of change among Anglo children was not significantly different from either of these groups. (GDC)