Growth and development of Negro infants. VII. The relationship of parental attitudes and socioeconomic pressures to intelligence and gross motor quotients during the second year of life.
D001741:Black or African American; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007360:Intelligence; D010287:Parent-Child Relations; D002666:Psychology, Child; D012924:Social Conditions