This systematic review examined the effects of distinct physical activity interventions on the academic achievement of school students based on an analysis of four distinct outcomes: mathematics, language, reading, and composite scores. This study was performed in accordance with the PRISMA guidelines and the QUORUM statement. A literature search…

Social essentialism, the belief that members of certain social categories share unobservable properties, licenses expectations that those categories are natural and a good basis for inference. A challenge for cognitive developmental theory is to give an account of how children come to develop essentialist beliefs about socially important…

This article provides a meta-analysis of experimental research findings on the existence of bias in subjective grading of student work such as essay writing. Twenty-three analyses, from 20 studies, with a total of 1935 graders, met the inclusion criteria for the meta-analysis. All studies involved graders being exposed to a specific type of…

The first years of life lay the foundations for a child's future development and learning. Many countries have increased their financial support for provision of early childhood education and care (ECEC) over the past years. More recently, the focus of debate has been shifting from expanding access to affordable ECEC to enhancing its quality. A…

The importance of pre-service teacher training regarding environmental education (EE) has been vastly demonstrated. This systematic review examined the existing evidence from studies evaluating and analysing the relationship between EE, including environmental competences and pre-service primary school teacher training. The literature review…

A recent meta-analysis of 164 terror management theory (TMT) papers indicated that mortality salience (MS) yields substantial effects (r = 0.35) on worldview and self-esteem-related dependent variables (B. L. Burke, A. Martens, & E. H. Faucher, 2010). This study reanalyzed the data to explore the researcher effects of TMT. By cluster-analyzing…

It has been argued that children who possess an advanced theory of mind (ToM) are more likely to act prosocially, yet the empirical findings are mixed. To address this issue definitively, a meta-analytic integration of all prior literature that met appropriate inclusion criteria was conducted. In total, 76 studies including 6,432 children between…

This study examined the relationships among statistics achievement and four components of attitudes toward statistics (Cognitive Competence, Affect, Value, and Difficulty) as assessed by the SATS. Meta-analysis results revealed that the size of relationships differed by the geographical region in which the studies were conducted as well as by the…

Reviewed 252 empirical studies of psychotherapy from "Journal of Consulting and Clinical Psychology" in 1967/1968, 1977/1978, and 1987/1988. Found main trend to be decline in theory-guided and rise in pragmatic, clinically oriented research. Discusses disadvantages of purely empirical approach to psychotherapy research and makes…

Examines 2,000 Strange Situation classifications obtained in eight different countries. Differences and similarities between distributions in classifications of samples are investigated using correspondence analysis. Substantial intracultural differences are established; data also suggest a pattern of cross-cultural differences. (Author/RWB)

Findings based on a meta-analysis of 16 individual studies conducted in Israel are reported. The study investigated how enhancing instruction may affect motor learning in students on various grade levels (K-11). (IAH)

Summarizes results of meta-analysis on findings of 41 different studies, yielding 77 correlation coefficients between measures of personality-environment congruence and well-being. Demonstrates congruence-achievement and congruence-stability correlations of .06 and .15 respectively, and a mean congruence-satisfaction correlation of .21, and after…