Relationship between ability tests and race and issues of famous lawsuits concerning possible bias in intelligence tests are summarized. Reasons for the origins of ethnic and racial differences in general intellectual ability are considered. Prospects for the reduction of group differences and conflicts are discussed. (SLD)

This article addresses the question of why intelligence tests were put on trial. The courts had to weigh the validity of intelligence tests once California chose to rely upon intelligence tests to justify the large numbers of Black children in classes for the educable mentally retarded. (Author/CTM)