The Starkweather Social Conformity Test is a research instrument designed to measure conforming and nonconforming behavior by providing the young child with opportunities to make choices in a situation in which he can follow a model or respond freely according to his own preferences. The test discriminates between compulsive conformists or nonconformists and children who are free to use either conforming or nonconforming behavior. The test is based on color preferences and is adjusted to the actual preferences of individual children. A pretest provides an opportunity for each child to indicate his color preferences. In the test proper, each child is given opportunities to conform as he constructs a picture booklet, identical to or different from booklets constructed by other persons (parents, peers, etc.). Scoring consists of a numerical count of the conforming and nonconforming responses made by the child. Scores range from -20 (complete nonconformity) to +20 (complete conformity). Statistical data resulting from administering the test to 200 children are discussed and include reliability of the test, age differences, and sex differences. (RC)