Journal ArticleDOI
Effect size estimates: Current use, calculations, and interpretation.
TLDR
A straightforward guide to understanding, selecting, calculating, and interpreting effect sizes for many types of data and to methods for calculating effect size confidence intervals and power analysis is provided.Abstract:
The Publication Manual of the American Psychological Association (American Psychological Association, 2001, American Psychological Association, 2010) calls for the reporting of effect sizes and their confidence intervals. Estimates of effect size are useful for determining the practical or theoretical importance of an effect, the relative contributions of factors, and the power of an analysis. We surveyed articles published in 2009 and 2010 in the Journal of Experimental Psychology: General, noting the statistical analyses reported and the associated reporting of effect size estimates. Effect sizes were reported for fewer than half of the analyses; no article reported a confidence interval for an effect size. The most often reported analysis was analysis of variance, and almost half of these reports were not accompanied by effect sizes. Partial η2 was the most commonly reported effect size estimate for analysis of variance. For t tests, 2/3 of the articles did not report an associated effect size estimate; Cohen's d was the most often reported. We provide a straightforward guide to understanding, selecting, calculating, and interpreting effect sizes for many types of data and to methods for calculating effect size confidence intervals and power analysis.read more
Citations
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Journal ArticleDOI
Community-level facilitation by macroalgal foundation species peaks at an intermediate level of environmental stress
TL;DR: Both the intensity and importance of facilitation were greater at middle elevations than at high elevations, which suggests that the facilitation-stress relationship at the community level is unimodal for this marine system.
Journal ArticleDOI
Sex-specific behavioral effects following developmental exposure to tetrabromobisphenol A (TBBPA) in Wistar rats.
Kylie D. Rock,Sagi Enicole A. Gillera,Pratyush Devarasetty,Brian Horman,Gabriel A. Knudsen,Linda S. Birnbaum,Suzanne E. Fenton,Heather B. Patisaul +7 more
TL;DR: It is demonstrated that exposure to environmental contaminants, like TBBPA, can have sex-specific effects on behavior highlighting the vulnerability of the developing brain.
Journal ArticleDOI
Responsabilidad social universitaria: influencia de valores y empatía en la autoatribución de comportamientos socialmente responsables
TL;DR: In this paper, a revision of the estudio de la responsabilidad social universitaria desde la psicologia, and desarrolla una propuesta novedosa de analisis for evaluar the incidencia de la educación superior in adquirir comportamientos de responsabilité social, basada in un analisises of ecuaciones estructurales de multiples indicadores and multiples causas.
Journal ArticleDOI
A Comparative Meta-Analysis of the Effects of Concussion on a Computerized Neurocognitive Test and Self-Reported Symptoms
TL;DR: If the athlete reports symptoms within 1 week of injury, administering a cognitive test does not appear to offer additional information to the clinician, however, if the athlete does not report symptoms postconcussion, cognitive testing may inform the clinical management of the injury.
Journal ArticleDOI
Task-irrelevant perceptual expertise.
TL;DR: It is demonstrated that some degree of PE can be acquired in a task-irrelevant manner, similar to PL, and generalizes to different untrained conditions, which does not support the idea that PE generalizes while PL is specific.
References
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Book
Statistical Power Analysis for the Behavioral Sciences
TL;DR: The concepts of power analysis are discussed in this paper, where Chi-square Tests for Goodness of Fit and Contingency Tables, t-Test for Means, and Sign Test are used.
Book
Using multivariate statistics
TL;DR: In this Section: 1. Multivariate Statistics: Why? and 2. A Guide to Statistical Techniques: Using the Book Research Questions and Associated Techniques.
Book
Nonparametric statistics for the behavioral sciences
TL;DR: This is the revision of the classic text in the field, adding two new chapters and thoroughly updating all others as discussed by the authors, and the original structure is retained, and the book continues to serve as a combined text/reference.
Book
Applied multiple regression/correlation analysis for the behavioral sciences
TL;DR: In this article, the Mathematical Basis for Multiple Regression/Correlation and Identification of the Inverse Matrix Elements is presented. But it does not address the problem of missing data.