The Process of Learning and the Correlates of Deprivation and Mental Retardation

Possibly, the most important act of faith impressive numbers of behavioral scientists now advocate is the belief that intelligence is educable, is plastic, is a function of practice and training. The host of preschool studies, the Headstart movement, our attempts to break down barriers separating closed institutions from open communities, testify to this pervasive optimism and are the trophies--meager as they may be--civilization has won for the diligent pioneering works of Binet, Skeels, Sarason, Kirk and a great many other scholars'too numerous to mention here.