This study sought to assess the ontogenetic course of three classes of size-value phenomena. Size-value phenomena refers to the observation that valued and neutral objects physically equal in size are judged as unequal. Results are discussed in terms of perceptual development. (ST)

A study is reported in which subjects aged 8 - 18 years made magnitude estimations of height for targets whose height and distance from them varied. For distances up to 15m, and heights from 5 to 50 cm, size constancy prevailed at all ages. (MS)

Two techniques were used to modify an impulsive conceptual tempo on a visual discrimination task. The subjects were 42 first grade white children who had previously been classified as impulsive or near-impulsive on the Matching Familiar Figures Test given to 82 children. These subjects, who had scored above the median on errors and below the…

Twenty-seven kindergarten children were trained on two different double classification matrix tasks in an attempt to determine whether the tasks were hierarchically related. Prior behavior analyses of the tasks suggested that the two tasks shared many components, but that the more complex task had in addition components not included in the simpler…

The first volume of a program to increase the academic growth of preschool and primary grade children through the utilization of brain hemisphere research, this manual outlines brain dominance theory and provides two instruments for assessing students' preferred style of learning. Material is provided in eight sections. Section 1 introduces the…

Some of the major changes that have influenced the field of child development since the last edition (1964) are presented in this edition. The book is divided into six parts, each with an introduction that summarizes what is important in the various domains of child development. Part One, The Grand Systems, is intended to give the reader a solid…

This paper challenges those involved in early childhood education to reexamine unquestioned assumptions concerning the benefits of early schooling. A synergic effect is posited by bringing together research areas that had formerly remained somewhat autonomous: Neurophysiology, vision, hearing, parent attitudes, affective domain, comparative school…

Two sections in this survey of research on conceptualization are devoted to "Recent Conceptual Studies in the Behaviourist Mould" and "Main Stream of Ontogenetic Studies of Conceptualization." Under Section I, topics investigated are behaviourist approaches to the conceptual process, conceptual problems, and developmental…