Journal ArticleDOI
Combining effect size estimates in meta-analysis with repeated measures and independent-groups designs.
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TLDR
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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Journal ArticleDOI
What a rude e-mail! Examining the differential effects of incivility versus support on mood, energy, engagement, and performance in an online context.
Gary W. Giumetti,Andrea L. Hatfield,Jenna L. Scisco,Amber N. Schroeder,Eric R. Muth,Robin M. Kowalski +5 more
TL;DR: Findings indicate that participants reported higher levels of negative affect and lower levels of energy after working with the uncivil supervisor than with the supportive supervisor, and these relationships were mediated by energy.
Journal ArticleDOI
The Stability and Change of Loneliness Across the Life Span: A Meta-Analysis of Longitudinal Studies:
TL;DR: Loneliness was found to decrease throughout childhood and to remain essentially stable from adolescence to oldest old age, indicating that changes in loneliness are not generally related to age.
Journal ArticleDOI
The effects of whole body vibration therapy on bone mineral density and leg muscle strength in older adults: a systematic review and meta-analysis
TL;DR: Whole body vibration is beneficial for enhancing leg muscle strength among older adults, however, the review suggests that whole body vibration has no overall treatment effect on bone mineral density in older women.
Journal ArticleDOI
Quantitative evaluation of the clinical efficacy of attention bias modification treatment for anxiety disorders.
TL;DR: The review estimates the efficacy of ABMT in clinically anxious patients and examines the effect of delivery context (clinic vs. home) on symptom reduction.
Journal ArticleDOI
Cognitive behavioral and pharmacological treatments of OCD in children : A systematic review and meta-analysis
Lars-Göran Öst,Lars-Göran Öst,Lars-Göran Öst,Eili N. Riise,Gro Janne Wergeland,Bjarne Hansen,Gerd Kvale +6 more
TL;DR: This meta-analysis includes all RCTs of CBT and SRI for OCD in youth using the Children's Yale-Brown Obsessive Compulsive Scale and finds that CBT was not more effective than CBT alone irrespective of initial severity of the samples.
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.