This study tested whether effects of a preventive intervention delivered in elementary school showed benefits for the young adult offspring of intervention recipients over 20 years later. The Raising Healthy Children (RHC) intervention, trialed in 18 public schools in Seattle, Washington, from 1980-1986 (grades 1-6), sought to build strong bonds…

This study explains the development of science, technology, engineering, mathematics (STEM) interest among elementary and middle schoolchildren. The cohort longitudinal design was applied, starting with three cohorts of students--fourth (10 years), fifth (11 years), and sixth (12 years) grade--followed for three consecutive years. A total of 947…

Investigated the hypothesis that 10-year-old children will tend to perceive delayed outcomes as being of lower value than immediately expected ones, with the effect being stronger for negative outcomes. Good- and bad-tasting foods were used as stimuli. (SDH)

A group of 108 children from nursery school, first grade, and third grade were given five problems measuring the concept of time, in which they were required to judge and explain which of two partially overlapping events started first, which ended first, and which lasted for a longer time. (Author/JMB)

Examines the duration of visual persistence and the relative processing rate in poor and normal readers. Subjects were 48 males aged 7 to 13 years. (MP)

This study examines the development of children's understanding of temporal cycles and the relationship between cyclic concepts and cognitive development. A sample of 62 children, ranging in age from 4 to 10 years, were administered Piagetian tests of classification and seriation and a variety of specially designed cyclic tasks. (Author/JMB)

Delay of gratification and temporal span were investigated in 58 girls, ages 4 to 9 years, by estimated story durations, delay of gratification in a direct choice money test, and reproduction of a 60-second interval. (BD)

In order to gain information on children's understanding of two different language forms (verb tense and adverbials "before" and "after") which can refer to past or future events, sentences containing either past tense, future tense, "before," or "after" were presented with sets of sequential pictures to 150 children from three to seven years old.…

Reviewed are longitudinal studies of aggressive behavior and reaction patterns in three groups of males (preschool children, school-age children and adults), as observed or inferred by individuals other than the subjects themselves. (Author/MP)

In order to investigate elementary school students' understanding of historical time, this study conducted open-ended interviews with 58 children in kindergarten through sixth grade. The students were asked to place nine illustrations from various periods of American history in chronological order and to talk about the reasoning behind the order…