This is a provocative look at the history, politics, and perils of intelligence testing. Despite well documented shortcomings and a controversial history, intelligence tests continue to be used widely in schools, in the workplace, and even in the courtroom. Combining excellent scholarship with highly readable prose, "IQ" tells the fascinating story of intelligence testing from its origins to the present. Psychologists' claims that they could measure intelligence created opportunities for them, but in the process, their inexact tool has caused millions of people to suffer unnecessarily. "IQ" reveals testing's wide ranging and powerful impact on public policy and private lives, from forced sterilization in the United States to horrors in Nazi Germany to the annual angst of high school SAT takers. Ultimately, Murdoch argues that we need a whole new model for intelligence rating. Stephen Murdoch (Santa Barbara, CA) is a freelance journalist who has written for the "Washington Post", the "Boston Globe", and "Newsweek", among other publications.