Subjects were Zambian elementary school children, ages 7-17, providing evidence of weight conservation behavior and those who did not; principal dependent variable was performance on locally-developed psychometric measures of reasoning ability. Very little connection was found between the conservation-status of the subjects and their performance…

Research was undertaken to determine what informal education practices lend themselves to the precocity in sensorimotor development noted among Bagandan infants in Uganda, relative to their American white and black counterparts. With the assistance of a Muganda midwife/nurse a prenatal questionnaire was answered by women visiting antenatal clinics…