Incentives and Learning in Children / Sam L. Witryol -- Habituation in the Human Infant / Wendell E. Jeffrey, Leslie B. Cohen -- Application of Hull-Spence Theory to the Discrimination Learning of Children / Charles C. Spiker -- Growth in Body Size: A Compendium of Findings on Contemporary Children Living in Different Parts of the World / Howard V. Meredith -- Imitation and Language Development / James A. Sherman -- Conditional Responding as a Paradigm for Observational, Imitative Learning and Vicarious-Reinforcement /Jacob L. Gewirtz.
