The author developed three instruments which operationally defined certain probability concepts and combinatorial abilities and subsequently used the instruments to classify the 90 subjects of the study according to their conceptual strategies or ability levels. The subjects were high school biology students from one school; all were taught by the…

Investigated was the assumption that college students are fully capable, by the time they enter college, of operating at the level of formal thought. The subjects selected for this study were students in chemistry and physics courses at a state university and an inner-city community college. Each student was tested with a Piegetian task to…

The relationship between scores on three area conservation tasks and scores on two area measurement tasks, as affected by two sequences of presentation of Piagetian tasks to children in grades one through three, was investigated. The five area tasks were administered individually to 168 children ranging in age from six years five months to nine…

This document presents case studies of children from five preschools of Head Start's Planned Variation Program. The case studies are designed to reflect the meaning of the preschool experience for each individual child, with emphasis on changes in self concept, concepts of the world, interpersonal interactions, and task-oriented behavior. Children…

This study investigated the effects of sex of child, age, rationale focus, rationale orientation, and maturity of moral judgment on resistance to deviation in 120 children (7 to 11 years old) using the standard punishment paradigm. Children were randomly assigned to a consequence- or intentions-focused rationale with an object or person…

A study was conducted to examine the situational generality of extended learning in early infancy. Ss were 17 infants within one week of eight weeks of age. All but two were Caucasian, and all were from middle-income families. The apparatus consisted of a pressure sensing pillow which, when placed under the infant's head or feet, was sensitive to…

Kindergarten and first grade children were given a paired-associate learning task following one of five types of strategy-training procedures. In the motor training conditions, subjects generated interactions involving pairs of toys by playing with them or by drawing pictures of them. It was found that relative to simple imagery practice, motor…

Forty infants, 10 at 4, 6, 8, and 10 months, were confronted by an experimenter who acted out angry, happy, sad, and neutral facial experssions, accompanied with appropriate vocalizations. The infants' responses were recorded on video tape and rated for attention, negative and positive affect, and activity. Results indicate that the 4-month old…

The purpose of this study was to investigate the effects of practice on relevant components of selected operations on a child's ability to conserve substance and weight. A group of 108 children between the ages of five and seven was selected from one school and pretested for conservation of weight and substance. The 48 non-conservers were then…

This study attempted to determine if performance on Piagetian tasks can be predicted from Stanford-Binet mental age or IQ. Subjects were 143 children of bright, average, and retarded abilities as measured by performance on the Stanford-Binet Intelligence Test. Bright and average children were chronologically aged five to seven years; retarded…

Following a review of research on the effects of early experience upon subsequent cognitive and intellectual development, an alternative Piagetian-based strategy for the study and evaluation of these concerns is presented. Using this paradigm, infants were observed naturalistically for one year. The observations were coded according to the four…

The present volume reflects the proceedings of the fourth annual symposium at the Carnegie-Mellon University, which dealt with developmental linguistics in general and with child language acquisition in particular. Contents include an Introduction by John R. Hayes; "Derivational Complexity and Order of Acquisition in Child Speech," by R. Brown and…

Concurrent with the increasing interest in the training group (T-Group) as a source of growth and personal awareness for its participants, is a need to examine the effects of the T-group on certain personality types. This paper presents a rationale for examining the effects of the T-group on introverts and extroverts. Two T-group styles were…

The purpose of this study was to investigate the Ivanov-Smolensky procedure as an effective clinical device for the assessment of cognitive development in children under four years old. This procedure, expressly developed for assessing development in children with limited verbal skills, minimizes some of the research problems associated with young…

The sixth paper in the science series of research reviews produced for the Science and Mathematics Education Information Analysis Center concerns research in science education at the elementary school level published in 1968-69. The following topics are reviewed: Effects of instruction in new elementary science programs (Science - A Process…