Increasingly, researchers are required to obtain active (explicit) parental consent prior to surveying children and adolescents in schools. This study assessed the potential bias present in a sample of actively consented students, and in the estimates of associations between variables obtained from this sample. Students (n = 3496) from 36…

The present study investigated the degree of congruence between student self-reports and teacher reports of relational and physical victimization and tested whether gender and age moderated these relations. Mixed effect regression models were conducted on a sample of 294 students (50.7% male) in Grades 2 to 5 and their classroom teachers. Results…

This paper estimates peer age effect on educational outcomes of Italian pupils attending primary school by exploiting changes in enrollment rules over the last few years. The empirical procedure allows to understand if there is selection in classroom formation, arguing that in the absence of pupils sorting by early age at school entry, it is…

Background: A number of studies have suggested that language in individuals with Down syndrome (DS) may not be simply delayed compared with language in typically developing (TD) children, but deviant. The deviance has been detected in the comprehension of pronouns, and it has triggered proposals for the existence of a specific syntactic deficit in…

Do children derive different benefits from group collaboration at different ages? In the present study, 183 children from two age groups (8.8 and 13.4 years) took part in a class quiz as members of a group, or individually. In some groups, cohesiveness was made salient by awarding prizes to the top performing groups. In other groups, prizes were…

With increasing age, the ratio of gains to losses becomes more negative, which is reflected in expectations that positive events occur with a high likelihood in young adulthood, whereas negative events occur with a high likelihood in old age. Little is known about expectations of social events. Given that younger adults are motivated to establish…

The present study investigates inter-individual variation (linked to personality traits, multilingualism and sociobiographical variables) in the attitudes that 2035 multilinguals have of their own and others' foreign accent (FA). Data were collected through an online questionnaire. We found that multilinguals who were extraverted, emotionally…

Study aims: The purpose of this study was to determine whether youth marijuana use (past year and past month) differed based on the frequency of positive parenting behaviours. Methods: The present study performed a secondary data analysis of the 2012 National Survey on Drug Use and Health. A national sample of youth in the United States (N=…

Children under 18 years represent 23 percent of the population, but they comprise 33 percent of all people in poverty. Among all children, 44 percent live in low-income families and approximately one in every five (22 percent) live in poor families. Young children under age 6 years appear to be particularly vulnerable, with 48 percent living in…

Children under 18 years represent 23 percent of the population, but they comprise 33 percent of all people in poverty. Among all children, 44 percent live in low-income families and approximately one in every five (22 percent) live in poor families. Our very youngest children--infants and toddlers under age 3 years--appear to be particularly…

In 2011, more than 1 million Americans aged 13 and over were living with HIV infection, and one in seven did not know their infection status. Routine, voluntary HIV testing is a recognized way to reduce HIV transmission. Using data from the 2011-2013 National Survey of Family Growth (NSFG), this report updates nationally representative estimates…

This dissertation examined the role of maternal input in word order acquisition of Mandarin-speaking children from the one-word to multi-word stages. Four questions about the role of maternal input were addressed: frequency effects, age-related changes, utterance type effects, and verb diversity effects. Predictions for each question were made…

Inclusive education is a means of creating effective classrooms where educational needs of all children including children with special needs are addressed. The concept of inclusion is still emerging as far as India is concerned. In the recent years, there is a growing awareness about inclusive education among educators. Government of India had…

This study investigates whether age-related changes in the structure of 5 complex working memory (WM) tasks (a) reflect a general or domain specific system, (b) follows a similar trajectory across different age spans, and (c) contribute domain general or domain specific resources to achievement measures. The study parsed the sample (N = 2,471)…

Does the mathematical reasoning ability develop with increase in age? How is mathematical reasoning ability differing according to gender? The current study is trying to find answers to these two questions. The study using cross-sectional design, was conducted with 409 (8th, 9th and 10th grade) students attending middle school and high school in…