Are IQ tests racially and culturally biased? That was the controversial question in two landmark lawsuits: the California case of Larry P. v. Riles (1979) and the Chicago case of PASE v. Hannon (1980). Litigating Intelligence is a detailed analysis and comparison of these complex cases--the background, evidence, testimony, arguments, and surprising outcomes. It is also an important case study of the role of social science testimony in the courtroom and the role of the courts in setting social policy.