Research Findings: Two longitudinal studies are reported examining the effects of full-time day care in Mapuche and non-Mapuche families in Chile. First, the Magellan-Leiden Childcare Study (MLCS) used a sample of 95 mothers with children younger than 1 year old (n = 36 in day care). Second, we partially cross-validated our results in a large and…

In this study we investigate Charlotte-Mecklenburg Schools (CMS) high school graduates' academic performance in the first year of college and test whether their exposure to racial segregation in high school at both the school and classroom levels affected their college freshman grade point averages. Utilizing administrative data from the Roots of…

Having students inspect and use each other's work is a promising way to advance inquiry-based science learning. Research has nevertheless shown that additional guidance is needed for students to take full advantage of the work produced by their peers. The present study investigated whether scaffolding through an integrated support tool could bring…

Using a longitudinal design, the present study examined whether two teaching concepts that varied in their capacity to foster students' self-determination affected students' sense of social relatedness and their perceived moderation competence, as well as the interplay between these two components and the students' performance during a moderation…

This study tested and integrated the effects of an inquiry-based didactic method for preschool science in a real practical classroom setting. Four preschool classrooms participated in the experiment (N = 57) and the children were 4-6 years old. In order to assess children's attention for causal events and their understanding at the level of…

Prior research has suggested that there may be differences in the ways that male and female students approach their online courses. Using data for 802 high school students enrolled in 14 online courses, this study explored gender differences in the interrelationships among online behaviors and course performance. The findings show that females…

The purpose of this study was to examine the impact of a six-week psychological skill training (PST) program that is based on a cognitive-behavioral conceptual framework on team cohesion, confidence, and anxiety of an intact team. Thirty-six male basketball players, 19 athletes for the experimental group and 17 athletes for the control group, aged…

Leadership and school culture are two factors that have a great impact in schools today. Much research has focused on leaders, but more is needed on the culture of schools. Improving both elements of leadership and school culture may also increase other challenges that schools face such as student achievement. The purpose of this study was to…

Survey participation rates can have a direct impact on the validity of the data collected since nonresponse always holds the risk of bias. Therefore, the International Association for the Evaluation of Educational Achievement (IEA) has set very high standards for minimum survey participation rates. Nonresponse in IEA studies varies between studies…

Based on notions posited by problem behavior theory, the primary goal of the current study was to examine the possibility that adolescents who engage in NSSI are not a homogeneous group but are rather divided into 2 subgroups: (a) adolescents who exclusively engage in NSSI, and (b) adolescents who are involved in NSSI alongside other problem…

Using a mixed methods comparative case study, the researcher explored the dual language contexts at each school before examining the second- through fifth-grade Spanish and English reading biliteracy trajectories. While both campuses' students experienced positive trajectories toward biliteracy by the end of fifth grade, each campus was…

In this paper we investigated the contribution of a dynamic testing procedure, including multiple graduated prompts protocols, in identifying differences in need for instruction of second grade children (N = 120) with arithmetic difficulties. The training was adaptive and prompts were provided according to one of six protocols, each focusing on a…

We evaluated the unique contribution of the two subscales of the Multigroup Ethnic Identity Measure-Revised (MEIM-R), Exploration and Commitment, to mental and behavioral health outcomes among non-Hispanic White, ethnic minority, and mixed-race college students. Monoracial ethnic minority and mixed-race students reported higher Exploration scores…

Purpose: This article explores the classical relationship between socioeconomic status and political domains, and the need to include different variables (contextual and individual) to measure the effect of economic and cultural capitals on youth participation and knowledge. Method: A multivariate analysis of covariance was performed on a sample…

This study compares the impact of second language (L2) reading and listening on the incidental acquisition and retention of five dimensions of vocabulary knowledge--spoken form, written form, part of speech, syntagmatic association, and form-meaning connection--at the level of recognition (form-meaning connection was measured also at the level of…