Sinclair-de Zwart's findings on relationships between cognitive and linguistic development were compared with data gathered in Australia from 162 first-, second-, and third-grade Greek-English bilinguals (tested in both languages) and 136 English monoglots in the same classroom. (Author/CS)

Two hypotheses concerning children's treatment of "less" as a synonym of "more" were tested with 4- and 5-year-olds. It was hypothesized: (1) that the "less"-"more" distinction can be taught; and (2) that conservation is dependent on the capacity to distinguish "more" and "less". (Author/CS)

This study examined the effects of sentence length and correct syntax on sentence imitation in 54 first-, second-, and fifth-grade elementary school children. The same children were asked to perform an additional discrimination task between normal and scrambled sentences. (Author/CS)

This experiment was primarily designed to investigate the preferred reinforcement patterns of urban Anglo-Americans, urban Mexican-Americans, and rural Mexicans. Subjects were 48 mother-child pairs, equally divided by culture and child's sex. (Author/CS)

The furnishings and toys of boys' and girls' rooms were canvassed on the assumption that differences, if found, would indicate parental ideas about sex-appropriateness. The children were 48 boys and 48 girls under 6 years of age; each child had his own room. (Author/CS)

Preschool children were rated in a variety of classroom situations to determine if they displayed consistent behaviors within and across settings. Each assessment was based on a 15-minute observation of the child. Results suggest that enduring response patterns can be identified, but only in relation to particular situations. (Author/CS)

Several propositions about the relationships between and among environmental variables of relevance to IQ were tested. Environmental variables hypothesized to be related to IQ were measured longitudinally across three time periods in childhood (0-3, 4-6, 7-10 years) on a sample of 110 subjects. (Author/CS)

Disadvantaged children were tested on the Peabody Picture Vocabulary Test in their own homes or away from home in an office or schoolroom. The overall testing environment was a significant factor influencing the test performance of disadvantaged children who had not attended a Head Start program. Head Start children performed equally well in both…

This study investigated the hypothesis that specific reading disability is caused by visual-spatial disorder. Poor and normal readers in the second and sixth grades were presented both verbal and nonverbal stimuli and asked to identify and/or reproduce them orally and graphically. Results are discussed. (CS)

This study was designed to chart the development of racial attitudes in Euro- and Afro-American children (in grades 1-4 of one elementary school) through the administration of the PRAM II procedure. A secondary purpose of the study was to compare the racial attitudes of second graders in several different geographical localities. (CS)

This paper presents a summary of the findings of the Color Meaning Test I (CMT I), descriptions of the revised Color Meaning Test II (CMT II), and a discussion of the theories of the development of color and racial bias in young children. CMT II data are reported on 160 Euro-American and 160 Afro-American children, ages 40 to 91 months. (Author/CS)

The effects of an observer's presence on maternal interactive behavior were examined through observation of mother-child pairs under informed and uninformed conditions. Results indicate mothers played with their children more, were more positive in their verbal behavior, and structured their children's activities more during the informed than…

This study was designed to: (1) assess the influence of an instructional set given to an observer regarding the presence or absence of a predictable pattern in the observed interaction, (2) extend and replicate findings of a previous study of observer accuracy, and (3) identify some of the specific types of errors made by observers in coding…

Observer reliability and number of behaviors rated were compared following two types of observer training: (1) training of observers by one individual, and (2) self-training, or each pair of observers training itself. Results suggest that more adequate standards for the training of observers and the reporting of observer reliability be adopted by…