This paper reviews, first, experimental studies of perceptual-cognitive development and related work directed to the assessment of infant intelligence and, second, naturalistic observation of the exploratory patterns of infants during free play. Techniques used, such as the Fagan Test of Infant Intelligence, offer the potential to identify…

The monograph reviews federal research activities and progress in biomedical and behavioral/social science research in mental retardation. Activities represent the National Institute of Child Health and Human Development and the Mental Retardation and Developmental Disabilities branch. The following categories are addressed in terms of biomedical…