Cognitive apprehension in visual pattern generalization problems / Aprehensión cognitiva en problemas de generalización de patrones visuales

Abstract

The objective of this study was to identify cognitive apprehensions used by fifth- and sixth-grade students (10–12-year-olds) when answering far generalization questions in two problems of visual pattern generalization. A total of 81 students solved two linear generalizing problems, presented in two different configurations, in a succession of figures (square tables or trapezoid tables). The results showed that students used different types of cognitive apprehensions to solve problems and that these apprehensions sometimes changed according to the configuration of the sequence of figures. This finding indicates that configurations could determine apprehensions used by students, which in some cases led to the emergence of algebraic thinking. In addition, difficulties in modifying apprehension and a lack of coordination between spatial and numerical structures could explain some students’ difficulties in far generalization.     

Attributions and Attitudes of Mothers and Fathers in Colombia

OBJECTIVE: The present study examined mean level similarities and differences as well as correlations between mothers' and fathers' attributions regarding successes and failures in caregiving situations and progressive versus authoritarian attitudes. DESIGN: Interviews were conducted with both mothers and fathers in 108 Colombian families. RESULTS: Fathers reported higher uncontrollable success attributions and higher authoritarian attitudes than did mothers, whereas mothers reported higher modernity of attitudes than did fathers; only the gender differences related to parental attitudes remained significant after controlling for parents' age, education, and possible social desirability bias. Medium effect sizes were found for concordance between parents in the same family for attributions regarding uncontrollable success and progressive attitudes after controlling for parents' age, education, and possible social desirability bias. CONCLUSIONS: This work elucidates ways that parent gender relates to attributions regarding parents' success and failure in caregiving and to progressive versus authoritarian parenting attitudes in Colombia.     

Measuring Spanish orthographic development in private,public and subsidised schools in Chile

The current study has a twofold purpose: first, to determine the reliability of a tool for assessing orthographic development in Spanish; second, to assess differences in students’ performance on the measure across multiple types of primary schools in a large city in Chile. A Spanish developmental spelling inventory that contained words of increasing orthographic difficulty was administered twice to students in first through fifth grades in three types of schools: public, private and partially subsidised. These school types in large part represent varying levels of student socio-economic status because of costs associated with attending them. Results demonstrate that (a) the Spanish spelling inventory is able to reliably measure the development of orthographic knowledge in Spanish, and (b) there is a relationship between school type and student achievement. The authors describe individual cases to highlight the qualitative nature of differential performance for students in greater- or lesser-resourced schools.     

The Social Ecology of Adolescent Alcohol Misuse

A conceptual framework based on social ecology, social learning, and social control theories guided identification of social contexts, contextual attributes, and joint effects that contribute to development of adolescent alcohol misuse. Modeling of alcohol use, suggested by social learning theory, and indicators of the social bond, suggested by social control theory, were examined in the family, peer, school, and neighborhood contexts. Interactions between alcohol modeling and social bond indicators were tested within and between contexts. Data were from a longitudinal study of 6,544 students, 1,663 of their parents, and the U.S. Census. All contexts were uniquely implicated in development of alcohol misuse from ages 11 through 17 years, and most alcohol modeling effects were contingent on attributes of social bonds.