This study examined how adolescents' emotions in mathematics develop over time. Growth curve modeling was applied to longitudinal data collected annually from 2002 to 2006 (Grades 5-9; N = 3425 German adolescents; M[subscript age] = 11.7, 15.6 years at the first and last waves, respectively; 50.0% female). Results indicated that enjoyment and…

This research investigated whether delayed school entry was associated with higher achievement in national tests of reading and numeracy in Grades 3, 5, 7, and 9 (n = 2,823). Delayed entry was related to advantages in reading (0.14 SD) and numeracy (0.08 SD) at Grade 3, although little variance was explained (1%-2%). This slight advantage…

This study examines associations between leisure reading and reading skills in data of 2,525 students followed from age 7 to 16. As a step further from traditional cross-lagged analysis, a random intercept cross-lagged panel model was used to identify within-person associations of leisure reading (books, magazines, newspapers, and digital…

As children become proficient readers, there are substantial changes in the eye movements that subserve reading. Some of these changes reflect universal developmental factors while others may be specific to a particular writing system. This study attempts to disentangle effects of universal and script-dependent factors by comparing the development…

Children's kindergarten experiences are increasingly taking place in full- versus part-day programs, yet important questions remain about whether there are significant and meaningful benefits to full-day kindergarten. Using the Early Childhood Longitudinal Study's Kindergarten Cohort (N= 13,776), this study takes a developmental approach to…

In the first of two tasks, 5- and 11-year-olds recalled the array location of social photographs of an unfamiliar adult expressing anger, disgust, fear, joy, and shame. In the second task, subjects were tested for their incidental recall of those features which were not previously isolated. Results indicated a mouth-eyes-nose hierarchy for…

In 2 studies, an expectancy-value framework was applied to investigate effort expended on mathematics homework. In Study 1 (2,712 students in grades 5, 7, and 9; mean age=13.37 years), lower homework effort was found in higher grades. The effects of intrinsic value on homework effort were higher in the older cohorts, whereas the effects of the…

Two studies investigated children's metacognition about everyday reasoning, assessing how they distinguish reasoning from nonreasoning and "good" reasoning from "bad." In Study 1, 80 1st graders (6-7 years), 3rd graders (8-9 years), 5th graders (10-11 years), and adults (18+ years) evaluated scenarios where people (a) used reasoning, (b) solved…

Evaluated whether age differences in children's generosity result from increasing altruistic motivation or increasing susceptibility to experimenter influence strategies. A total of 282 first, third, and fifth graders voted on how to spend a gift of money under one of five instructional sets--three levels of experimenter influence, peer influence,…

First- and fifth-grade children were presented a hypothetical case in which a child, who circumstantial evidence suggests might have committed a "crime," is punished by a parent. Subjects were asked to indicate whether or not they believed the punishment to be fair and the child guilty. (Author/RH)

This research demonstrates significant but moderate association among 4 methods of measuring other-centeredness, including behavioral, cognitive, valuative, and peer-rating measures. (Authors)

For the age range tested there is a lag between the perception and production of certain facial expressions. (Authors)

A possible interpretation of the differential predictability across school systems as revealed in this study, is offered. (Authors/MB)

When first, fourth, and fifth grade speakers played a referential communication game with a fictitious listener, they were more likely to give redundant messages to listeners with whom they had no common shared experience or to strangers than to listeners with whom they had shared a previous experience. (RH)

Among kindergarten children, second-, fifth-grade, and college students, a gradual age-related increase was found in the ability to interpret an event from another person's perspective in light of that person's prior experiences. Various alternative explanations for the developmental trend were evaluated with data from subjects receiving prompts…