Series of experiments indicates that young infants are more sensitive to the spatial orientation of forms than was previously thought. This report is based on a dissertation submitted to the University of Strathclyde, August, 1969, in partial fulfillment of the requirements for the degree of MSc. (MH)

Reports three experiments conducted to investigate factors controlling performance of nonreinforced verbal imitation. (WY)

The amount of reinforcement received during initial learning activities has a direct effect on the ability to transfer training. (CK)

A study of the ability of young children to discriminate among such letters as p and q, d and b, using four different methods of discrimination (matching, copying, naming, and writing to dictation). Results show that the accuracy of discrimination is dependent upon the method of assessment employed. (Author/WY)

Three groups of severely retarded and three groups of mildly retarded individuals responded to a series of five 10-trial oddity problems under nonreward conditions. Results suggest that oddity is a stimulus characteristic to which an approach response is made, independent of its concurrent association with reward, and that stimulus value of oddity…