Currently popular systems for classification of spelling words or errors emphasize the learning of phoneme-grapheme correspondences and memorization of irregular words, but do not take into account the morphophonemic nature of the English language. This study is based on the premise that knowledge of the morphological rules of derivational morphology is acquired developmentally and is related t...

With the popularity of massive open online courses (MOOCs), grading through crowdsourcing has become a prevalent approach towards large scale classes. However, for getting grades for complex tasks, which require specific skills and efforts for grading, crowdsourcing encounters a restriction of insufficient knowledge of the workers from the crowd. Due to knowledge limitation of the crowd graders...

BACKGROUND Monitoring secular trends in blood pressure (BP) among children is important in predicting subsequent hypertension and cardiovascular disease. We investigated secular trends in BP using data from population-based annual screenings of Japanese schoolchildren. METHODS The participants were 10 894 children (all fourth graders between 1994 and 2010 and all seventh graders between 1997 ...

The contribution of the three core components of working memory (WM) to the development of mathematical skills in young children is poorly understood. The relation between specific WM components and Numerical Operations, which emphasize computation and fact retrieval, and Mathematical Reasoning, which emphasizes verbal problem solving abilities in 48 2nd and 50 3rd graders was assessed using st...

The epistemic trust literature emphasizes that children's evaluations of informants' trustworthiness affects learning, but there is no evidence that epistemic trust affects learning in academic domains. The current study investigated how reliability affects decimal learning. Fourth and fifth graders (N = 122; Mage = 10.1 years) compared examples from consistently accurate and inaccurate informa...

The aim of the study was to assess the development of motor abilities in elementary school fifth- to eighth-graders (age 11-14 years) according to sex, age and physical activity. Study sample included 312 subjects divided according to age and sex into four groups: male subjects aged 11-12 (n = 93) and 13-14 years (n = 84); and female subjects aged 11-12 (n = 65) and 13-14 years (n = 70). Then, ...

BACKGROUND To (1) develop and refine the Home Environment Assessment for the Visually Impaired (HEAVI), and (2) determine the interrater reliability of this instrument, which was designed to quantify the number of fall-related hazards in the homes of individuals with visual impairment. METHODS Twenty homes of community-dwelling adults were included in this study. Each home was graded by an oc...

BACKGROUND This is a supplemental report on tests of the long-term effects of universal preventive interventions conducted during middle school on 17-21-year-olds' prescription drug misuse. DESIGN/SETTING/PARTICIPANTS Two randomized controlled prevention trials were conducted in public schools in the rural midwestern United States. Study 1 began in 1993, with 667 6th-graders; follow-ups with ...

BACKGROUND Working for pay is associated with substance use and delinquency among older adolescents, although information is scant about younger youth who work. This study investigates associations between self-reports of having a job and substance use and delinquent behaviors in a sample of U.S. 5th graders. METHODS A total of 5147 5th graders and their parents from three large metropolitan ...

0360-1315/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.compedu.2009.11.014 * Tel./fax: +972 3 5245284. E-mail address: [email protected] The effect of reading an electronic storybook (e-book) on Israeli children’s language and literacy was examined in kindergarten children (N = 40; age 5:2–6:3) compared to first graders (N = 50; age 6:3– 7:4). The children in each age group were ra...