The Parenting Inventory: Young Children (PI) is a rating scale that measures the developmental expectations and behaviors of parents of children who are between the ages of 1 and 4 years, 11 months. Using a representative urban sample of 1,056 mothers, the PI was found to discriminate successfully between parents with children of different ages and to have substantial item-construct correlations (content validity). The PI was not strongly related to the Adult-Adolescent Parenting Inventory, a measure of parenting attitudes (discriminant validity). Reasons for this latter finding are discussed. Potential uses of the PI for practitioners working with parents in the schools are described.