Hypothesis behavior on three dimensional concept attainment problems was measured for 48 children (12 each at grades K, 2, 4, and 6). Every feedback trial was followed by a blank trial, a procedure that provided separate measures of Ss' ability to use hypotheses and test hypotheses. A S was considered to be "using" when his hypothesis inferred…

From sociolinguistic and dialect research have merged three hypotheses concerning the comparison of American Negro and white speech: (1) there is little difference in the linguistic usage of Negroes and whites of similar socioeconomic status; (2) Negroes have a separate dialect with its own phonological, grammatical, and lexical features; and (3)…

A study of the physical activity or motor responses associated with curiosity, persistence, and problem solving behaviors was undertaken to learn more about the general developmental nature of these behaviors among elementary school children. The sample consisted of 125 children from kindergarten, second, fourth and sixth grade, all of whom…

In a previous study, (ED 038 175) Mississippi children, who were a year younger (3 1/2 to 4 1/2) than Alabama children, had scored higher than the Alabama children on posttesting. This supplementary report gives the results of further investigation of this finding. Explanations may be: (1) the younger children began with higher IQ scores; (2) more…

This study was concerned with children's ability to conserve spatial relationships among objects in different arrangements, in the presence of projected changes in the observer's visual field. The objectives were: (1) to determine the effects of varying types of arrangement and number of objects in the arrangement on perspective ability…

The purposes of the study were to determine the influence of age on academic achievement, to investigage meaningful relationships between Graduate Record Examination (GRE) aptitude test scores and graduate grade point ratios (GPR), and to evaluate the student sample in terms of national norms. The assumption underlying the study was that…

A survey in thirty organizations known to be retraining workers over 35 years of age as well as young workers for operations which required a training period of at least two weeks, aimed at determining how the proportion of older men and women who successfully completed training compared with that of the young, and how long they remained in the…

The influence of two aspects of language structure, syntax and associativity, on the free recall of verbal messages was investigated. (Syntax refers to the rules for ordering words within sentences; associativity refers to the network of meaningful relationships which exist among words in a language.) Twenty-four children from each of grades…

Three studies of preschool children's interpersonal speech usage were formulated in an attempt to understand this aspect of language development. First, a methodological study was designed to develop an instrument for assessing spontaneous interpersonal speech; second, a developmental study was aimed at identifying developmental changes in the…

This dissertation considered the experience of various groups that participated in the Job Corps both during and after their stay in Job Corps. Considerable differences were found between the various race/age and race/religion groups considered. All groups, however, received benefits in excess of costs, with the Benefit/Cost ratios found ranging…

Four hundred students, ranging from 5 to 15 years of age, were administered a series of tests of concept learning and development as a test of the Conceptual Learning and Development (CLD) model. Various levels of attainment of the concept of "equilateral triangle" were measured. The CLD model predicts that a decreasing number of students at a…

Nursery school children (N=64) received seven tests of conservation of number which varied in the type and number of perceptual supports for conservation. Most of the tests with these supports facilitated performance in comparison to the standard conservation test. Conservation appeared earlier than usual. There were significant effects of…

This study investigates developmental trends in free recall, with emphasis on rehearsal processes. An overt rehearsal technique was used in which 28 children in grades 3, 6, and 8 were instructed to rehearse out loud while trying to memorize a list of unrelated nouns. Control groups at each age level received standard free recall instructions,…

To investigate two measures which have been used to assess children's attention to stimulus dimensions, component selection, and dimension preference, both measures were administered to 38 3 1/2 to 5-year-olds and 20 5- to 6 1/2-year-olds. Seven to ten days after the dimension preference task was given. the component selection measure was…

This report summarizes the results of the administration of the vocabulary and Block Design subtests of the WISC to a national probability sample of noninstitutionalized youths 12 through 17 years of age. Information is presented on the derivation of percentile equivalents, normalized scale scores, and a short-form estimate of Face Scale Scores.…