Reanalyzed data from Sheldon and Eleanor Glueck's study of 500 delinquents and 500 nondelinquents from low-income neighborhoods of Boston between 1924 and 1935. Found that low supervision, weak parent-child attachment, and erratic, threatening, and harsh discipline, contributed to delinquency. Suggests that strong family social controls may serve as a buffer against structural disadvantage in the larger community. (MDM)