Described in this symposium report are results from three studies exploring the relationship of home environments in infancy or early childhood to school performance. All studies used the Home Observation for Measurement of the Environment (HOME) and drew their data from the files of the Houston Parent-Child Development Center, a 2-year parent/child education program for low-income Mexican-American families. The first study examined the relationship between the child's HOME scores at age 3 to his or her general school performance. The second study investigated the relationship of the child's HOME scores at age 1 to later grade retention, while the third study dealt with the relationship of HOME scores gathered at ages 1, 2, and 3 to school measures conducted in first and second grades. In the first two studies HOME scores were found to be poor predictors of grade retention and only fair predictors of school achievement test results. The third study, however, found HOME scores to be strong predictors of school performance, especially for children 2 years of age. (MP)