Sixty 2nd, 5th, and 8th graders were interviewed on their moral and ecological reasoning about the 1990 Exxon Valdez oil spill that occurred in Prince William Sound, Alaska. Results showed that children understood that the oil spill negatively affected the local Alaskan shoreline, marine life, fishermen, recreationists, and the oil company. Children cared that harm occurred to the shoreline and...

Because first graders are critical for excess weight gain, we assessed components of the metabolic syndrome (MetS) using the pediatric definition of the International Diabetes Federation (IDF). We compared four MetS components as defined by the IDF with age- and gender-specific components in 2228 first graders at the age of 6. The growth curves were derived from 22113 children and adolescents w...

Two experiments explored the development of cynicism by examining how children evaluate other people who make claims consistent or inconsistent with their self-interests. In Experiment 1, kindergartners, second graders, and fourth graders heard stories with ambiguous conclusions in which characters made statements that were aligned either with or against self-interest. Older children took into ...

Using a multiple-deviant oddball paradigm, this study examined second graders' brain responses to Cantonese speech. We aimed to address the question of whether a change in a consonant or lexical tone could be automatically detected by children. We measured auditory mismatch responses to place of articulation and voice onset time (VOT), reflecting segmental perception, as well as Cantonese lexic...

We investigated Finnish children’s use of print and electronic media in the home and their literacy development. Questionnaire data from 857 parents of preschoolers (collected in 2006 and 2007) and first graders (2008) showed that homes were well equipped with electronic media including Internet access in almost every home, although only a third of the children used the Internet. Television, pr...

The purpose of this study was to determine if students ̓heart rate outcomes in physical education varied as a function of activity and grade. A total of 146 sixth to eighth graders participated in different activities (i.e., walking/jogging, line dancing, soccer, and catch ball). Their average heart rate (AHR) and percentage of time in and above target heart rate (PTHR) were used as outcome var...

A prominent theory of cognitive development attributes the poor performance that children show in many cognitive tasks to a general lack of inhibitory control. We tested this theory by examining children's inhibitory capabilities in retrieval-induced forgetting (RIF), a memory task in which selective retrieval of previously studied material causes forgetting of related, nonretrieved material. S...

This study aims to investigate middle school students’ perceptions of history science. The participants were a total 140 students who studied at 5th, 6th, 7th and 8th grade levels. A Word-Association-Test (WAT) was used collect data. After data collection, frequencies response-words determined. By using cut-point technique, concept webs drawn. According the findings, most different gathered fro...

BACKGROUND/AIMS To develop a standardised grading scheme, using standard photos, for spectral-domain ocular coherence tomography (SD-OCT) images of the posterior eye and evaluate the interobserver agreement among trained ophthalmologists in identifying pathological changes. METHODS Subjects were recruited from Liwan District, Guangzhou, with SD-OCT data collection from June 2013 to November 2...