Six experiments with 42 kindergartners, 190 first graders, and 15 second graders in Germany investigated why arithmetic word problems with an unknown reference set are more difficult for children than are problems with an unknown compare set. Lack of access to flexible language use makes these problems so difficult. (SLD)

Research on cognitive representation of numbers and understanding of place value of U.S. and Japanese first graders was extended to France, Sweden, and Korea (118 subjects; approximately 24 from each of the 5 countries). Basic differences in children's cognitive representations of number are influenced by characteristics of their languages. (SLD)

Types of questions asked in first-grade mathematics classes in Japan, Taiwan, and the United States were investigated. Observations of 311 lessons by 16 Japanese, 20 Taiwanese, and 33 U.S. teachers suggest that the kinds of questions asked in Taiwan and Japan contribute to more sophisticated mathematical knowledge. (SLD)

A structural model of mathematics achievement was tested with 117 male and 108 female Canadian high school seniors, examining the role of self-efficacy as a mediator between mathematics attitudes and achievement. The postulated model for similarly specified parameters was a good fit to data for both males and females. (SLD)

Studied age trends in solving correlational problems involving over 2 continuous variables 100 Canadian students in grades 5, 7, 9, and 11 and a postgraduate college preparatory year; 278 seventh graders; and 120 tenth graders in 3 experiments. Correlational reasoning skills increased with age and improved through instruction. (SLD)

Cognitive load theory was explored in 3 conditions among 96 third graders in nonisomorphic analogical transfer (problems do not have identical structures, constraints, and problem spaces). Conditions under which children best adjust the base to the target are discussed, and implications for transfer are reviewed. (SLD)

A dynamic measure (number of examples needed to reach mastery) predicted transfer but not maintenance of a learned strategy for 64 third graders trained by scaffolded (n=32) or nonscaffolded (n=32) methods. A static measure had some predictive utility in the nonscaffolded condition. The potential superiority of scaffolded instruction is discussed.…

In a cross-sectional study of 95 kindergartners and 89 second graders, confirmatory factor analysis of a battery of phonological and control tasks was used to compare models of young readers' phonological processing abilities. Results suggest that phonological abilities are best conceptualized as relatively stable and coherent individual…

Follow-up evaluation data were collected after one year on a program to teach young children about phonemic structures. Results with 63 experimental subjects in first grade and 56 controls indicate that children who enter school with advanced phonemic awareness score high on measures of word identification, decoding, and spelling. (SLD)

The relationship between reading subcomponent efficiency and comprehension processes in terms of resource competition was studied in 2 experiments with 138 undergraduates and college-age volunteers. Results suggest competition for limited attentional resources when readers follow text presented at a preset rate, supporting a compensatory-encoding…

A study with 28 fourth graders, 30 eighth graders, and 30 college students demonstrates that the relationship between knowledge of the requirements of a globally coherent essay and the ability to produce such an essay generally remains statistically significant when the effect of grade level is removed. (SLD)

A theoretically based structure-mapping model of writing from sources was proposed and tested with 34 male and 50 female undergraduates who wrote a comparison-contrast essay about 2 passages. Results suggest that the model, adapted from work of D. Gentner, is useful in describing use of sources in writing. (SLD)

This study surveyed personal factors influencing reasoning of 61 adult citizens about federal budget deficit solutions. Reasoners were motivated to present a strong argument for their answers and generally did not offer counterargument unless prompted to do so. Education level was not significantly related to quality of argument. (SLD)

In interviews about the fairness of teaching practices, 113 high-ability students aged 6 to 18 years (in 6 age groups) typically chose peer tutoring as the fairest. High-ability students do not emphasize self-interest when evaluating fair practices. Children's evaluations of institutional practices reflect their developing conceptions of social…

Concepts of authority with regard to type of authority directive and social context were studied for 30 male and 30 female elementary school students in 3 age groups from kindergarten through grade 6. Children conceptualize authority with respect to social position and within the bounds of specific social contexts. (SLD)