Contrary to popular opinion, it is very difficult to find any objective evidence of culture bias that could account for social class and racial differences in performance on current standard tests of intelligence, even those like the Peabody Picture Vocabulary Test (PPVT), which give the appearance of being highly culture-loaded. They may be…

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)