Journal ArticleDOI
Combining effect size estimates in meta-analysis with repeated measures and independent-groups designs.
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In this paper, a method for combining results across independent-groups and repeated measures designs is described, and the conditions under which such an analysis is appropriate are discussed, and a meta-analysis procedure using design-specific estimates of sampling variance is described.Abstract:
When a meta-analysis on results from experimental studies is conducted, differences in the study design must be taken into consideration. A method for combining results across independent-groups and repeated measures designs is described, and the conditions under which such an analysis is appropriate are discussed. Combining results across designs requires that (a) all effect sizes be transformed into a common metric, (b) effect sizes from each design estimate the same treatment effect, and (c) meta-analysis procedures use design-specific estimates of sampling variance to reflect the precision of the effect size estimates.read more
Citations
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A systematic review of telecounselling and its effectiveness in managing depression amongst minority ethnic communities.
TL;DR: Significant short-term treatment effects were associated with telephone- and Internet-mediated services, including moderate to large improvements across measures of depression, anxiety, quality of life and psychosocial functioning reported.
Journal ArticleDOI
Language learning grit, achievement, and anxiety among L2 and L3 learners in Russia
Ekaterina Sudina,Luke Plonsky +1 more
TL;DR: This paper explored a two-dimensional factor structure of language learning grit and found that learners in Russian have a grit subscale comparable to foreign language anxiety with regard to second and third language achievement and self-rated proficiency.
Journal ArticleDOI
Motivated Implicit Theories of Personality My Weaknesses Will Go Away, but My Strengths Are Here to Stay
Andreas Steimer,André Mata +1 more
TL;DR: Across six studies, this research found consistent evidence for motivated implicit theories about personality malleability: People perceive their weaknesses as more malleable than their strengths, and motivation also influences how people see themselves in the future, such that they expect their present strengths to remain constant, but they Expect their present weaknesses to improve in thefuture.
Journal ArticleDOI
Moral responsibility and free will: A meta-analysis
Adam Feltz,Florian Cova +1 more
TL;DR: A meta-analysis indicates that beliefs in free will are largely robust to emotional reactions, and that affect influences judgments about determinism's relation to free will and moral responsibility.
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Interactive-Virtual Reality (IVR) Exercise: An Examination of In-Task and Pre-to-Post Exercise Affective Changes
TL;DR: In this article, the influence of imposed vs. self-chosen interactive/virtual reality (IVR) exercise on affect response following, as well as during, exercise was examined.
References
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Book
Statistical Principles in Experimental Design
TL;DR: In this article, the authors introduce the principles of estimation and inference: means and variance, means and variations, and means and variance of estimators and inferors, and the analysis of factorial experiments having repeated measures on the same element.
Journal ArticleDOI
Statistical Principles in Experimental Design
TL;DR: This chapter discusses design and analysis of single-Factor Experiments: Completely Randomized Design and Factorial Experiments in which Some of the Interactions are Confounded.
Book
Statistical Methods for Meta-Analysis
Larry V. Hedges,Ingram Olkin +1 more
TL;DR: In this article, the authors present a model for estimating the effect size from a series of experiments using a fixed effect model and a general linear model, and combine these two models to estimate the effect magnitude.
Journal ArticleDOI
Statistical Methods for Meta-Analysis.
TL;DR: In this paper, the authors present a model for estimating the effect size from a series of experiments using a fixed effect model and a general linear model, and combine these two models to estimate the effect magnitude.