The data on physical fitness, body attitude and self-concept support the contention that a healthy attitude progresses through the physical sphere. (Author)

Results of this study indicates a need for diverse and concrete social learning materials in the preschool environment. (Authors)

Experiment to determine whether the use of realistic materials would improve performance in a deceptive reasoning problem. (Authors)

An investigation to determine what essential role characteristics lead to successful music programs. (CB)

Experiments designed to investigate performance on a complex task as it varies with training. (Author)

Participation in the Head Start program has had a favorable effect on the program participants in all of the major areas of development covered by the pupil rating instrument used in this assessment. (Author)

Classifies experimental error into two main groups: systematic error (instrument, personal, inherent, and variational errors) and random errors (reading and setting errors) and presents mathematical treatments for the determination of random errors. (PR)

Finding supports the educational theory and practices of Montessori educators. (Authors)

The ability to order objects in a series according to some dimension, such as size, is recognized as an important aspect of a child's ability to understand logical concepts. (Author)

Study investigated the effects of a response-produced intense-noise stimulus (punishment) on the extinction of children's hitting behavior. (Author)

Study found that stimulus presence during a delay of reinforcement interval enhanced performance, and to a large extent prevented the usual delay-produced decrement. (Authors)