The controversies surrounding the use of intelligence quotient (IQ) tests with children are summarized. This article discusses what intelligence is and how intelligence is measured. It also examines factors which can affect measurement, including examiner training or bias, examinee age, misinterpretation of test scores, and poor tests. The appropriate uses of IQ tests are considered, as well as the abuses. Past, present, and future trends in intelligence testing are described. It is concluded that since trends suggest that more rather than less IQ testing will occur, efforts should be directed at developing better tests and reducing abuses. (GDC)