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The relationship between concrete operational thought and concept attainment was investigated in second grade students. (GO)

The model described provides both the supervisor and the employee with a more objective basis for implementing a particular training/development technique and offers the greatest opportunity for performance improvement. (Author/IRT)

It was hypothisized that socialization within an achievement-oriented culture would encourage children to adjust the amount of self reward according to length and difficulty of a task. Task length but not difficulty was found to influence a self reward in second grade children. (ST)

The duties of dental assistants are being expanded to include intraoral procedures performed under a dentist's supervision, to provide more dental care to more people at less cost. The SUN (Snyder, Union, and Northumberland counties, Pennsylvania) Area Vocational-Technical School provides training and clinical experience as a model program. (AG)

Investigated with 20 nonorganic retarded, 20 nonretarded matched mental age, and 20 nonretarded matched chronological age Ss were two postulates (H. Spitz): that it takes longer to induce temporary and permanent changes in stimulated cortical cells of retarded Ss; and that post change cell return to previous state takes longer. (Author/MC)

A new method is introduced for assessing children's component selection--i.e., the disposition to attend to a single feature of multifaceted stimuli. (Authors)

In this and a previous study, only 29 percent of the subjects of mean age 13.6 had attained the conception of conservation of volume, a finding at variance with Piaget's earlier results. (Authors/CB)

Results on arithmetic, spelling, and self-concept measures indicated no differences in mean test scores across groups, regardless of test conditions. It is suggested that since a variety of noises is a normal part of our environment, music as a distractor is not a new experience for test-takers and therefore not distracting in a test situation.…

This investigation attempted to determine to what degree children will elect a school task because they are told that they have done well at it. (KM)

Experiment was designed to isolate the incentive properties of uncertainty reduction (information) from those of material reward value and vaiety in a binary, competitive reward situation. (Author)

The Guilles de la Tourette Syndrome, a relatively rare disorder that usually begins in childhood, is characterized by (1) body tics that progress in severity and involvement of face, neck, shoulder, and trunk musculature; (2) repetitive barking or clucking noises; (3) coprolalia, or tic-like repetitive uttering of obscenities. (Author)

Results indicated that subjects in each source of blame group responded with significantly less amplitude and speed following interruption than noninterruption. (Authors)

Describes procedures, results, and conclusions of a study designed to compare urban children with suburban children on eight tasks of basic skills. The subjects were 1500 randomly chosen children in the first, second, and third grades. Children from different socioeconomic background performed differently. On many of the skills, third grade urban…