Adult literacy skills are critical assets of individuals as well as societies in terms of economic (e.g., human capital) and social well-being. Thus, it is important to monitor the long-term trends and sources of skill gain/loss. Yet, temporal sources of adult literacy skill variation are understudied. The current study analyzed three comparable,…

The rising costs of recruiting and hiring workers and the seismic shift of age demographics in the United States workforce has created much stir around the concept of generational cohorts. Although much has been done by researchers and practitioners alike to attempt a better understanding of each generational group's leadership preferences,…

We studied the effect of the number and characteristics of siblings (sex, age) on school achievement in several grades (kindergarten, first grade, and fifth grade), in two large French cohorts, with more than 16,000 children. Running linear mixed-effects models, we find that, independently of socioeconomic status, having more siblings is…

This longitudinal study examined developmental changes in conflict inhibition and error correction in three cohorts of children (5, 7, and 9 years of age). At each point of assessment, children completed three levels of Luria's tapping task (1980), which requires the inhibition of a dominant response and maintenance of task rules in working…

Life Span psychological and life course sociological perspectives have long acknowledged that individual functioning is shaped by historical and sociocultural contexts. Secular increases favoring later-born cohorts are widely documented for fluid cognitive performance and well-being (among older adults). However, little is known about secular…

Numeracy and literacy skills have become increasingly important in modern labour markets. The large gender differences that several studies have identified have therefore sparked considerable attention among researchers and policy makers. Little is known about the moment in which such gaps emerge, how they evolve and if their evolution differs…

In this study, the values of students in the physical education and sport departments were examined according to their gender, age, grade, and departments. The questionnaire method was used in the study. As the data collection tool, the Portrait Values Questionnaire was applied. The study group consisted of a total of 389 students 126 of whom were…

Maternal education captured at a single time point is commonly employed as a predictor of a child's cognitive development. In this article, we ask what bearing the acquisition of additional qualifications has upon reading performance in middle childhood. This was a secondary analysis of the United Kingdom's Millennium Cohort Study, a cohort of…

This study was designed to analyze the relationship of students' learning motivation and their academic performances in science. The study made use of 21 junior and senior Biological Science students to conclude on the formulated research problems. The respondents had a good to very good motivation in learning science. In general, the extent of…

The current study demonstrates the application of an analytic approach for incorporating multiple time trends in order to examine the impact of cohort effects on individual trajectories of eight drugs of abuse. Parallel analysis of two independent, longitudinal studies of high-risk youth that span ages 10 to 40 across 23 birth cohorts between 1968…

In Western cultures, life narratives are typically expected to recount the narrator's life from birth to the present. Disparate autobiographical memories need to be integrated into a more or less coherent story, which is facilitated by an overarching temporal macrostructure. The temporal macrostructure consists of elaborated beginnings that…

Background: The basis of self-perceived physical competence is built in childhood and school personnel have an important role in this developmental process. We investigated the association between initial self-perceived physical competence and reported leisure-time physical activity (LTPA) longitudinally in 10-, 12-, and 15-year-old children.…

Objective: To examine differences between heterosexual and lesbian, gay, bisexual, and questioning students' nonmedical use of prescription drugs (NMUPD). Participants: First-year university students between October 2009 and October 2013 who self-identified as heterosexual, lesbian, gay, bisexual, or questioning. Methods: Students completed…

The current study aims to explore how children explain the concepts of biology and how biological knowledge develops across ages by focusing on the structure and functions of the digestive system. The study was conducted with 60 children. The data were collected through the interviews conducted within a think-aloud protocol. The interview data…

This research brief provides a national portrait of the characteristics, development, and well-being of children and families at the beginning of the Head Start program year, using recent data from the Head Start Family and Child Experiences Survey (FACES 2014). This brief highlights descriptive information from the Fall 2014 Data Tables and Study…