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
Your Highness: Vertical Positions as Perceptual Symbols of Power.
TL;DR: The evidence suggests that the concept of power is partly represented in perceptual form as vertical difference, and that thinking about power involves mental simulation of space and can be interfered with by perception of vertical differences.
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Environmental Sustainability and Behavioral Science: Meta-Analysis of Proenvironmental Behavior Experiments
TL;DR: In this article, a meta-analysis was performed on 87 published reports containing 253 experimental treatments that measured an observed, not self-reported, behavioral outcome, and concluded that cognitive dissonance, goal setting, social modeling, and prompts provided the overall largest effect sizes (Hedge's g > 0.60).
Journal ArticleDOI
A Comprehensive Meta-Analysis of Triple P-Positive Parenting Program Using Hierarchical Linear Modeling: Effectiveness and Moderating Variables
Christoph Nowak,Nina Heinrichs +1 more
TL;DR: A meta-analysis encompassing all studies evaluating the impact of the Triple P-Positive Parenting Program on parent and child outcome measures indicated that Triple P causes positive changes in parenting skills, child problem behavior and parental well-being in the small to moderate range.
Journal ArticleDOI
A systematic review of personality trait change through intervention.
TL;DR: Empirical studies identified 207 studies that had tracked changes in measures of personality traits during interventions, including true experiments and prepost change designs, and found that personality traits changed the most, and patients being treated for substance use changed the least.
Journal ArticleDOI
Meta-analysis of the age-related positivity effect: Age differences in preferences for positive over negative information.
TL;DR: Results indicate that the positivity effect is reliable and moderated by theoretically implicated methodological and sample characteristics, and indicates that older adults show a significant information processing bias toward positive versus negative information, whereas younger adults show the opposite pattern.
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.