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
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Journal ArticleDOI
Peer tutoring and mathematics in secondary education: literature review, effect sizes, moderators, and implications for practice.
TL;DR: Conclusions suggest the implementation of same-age over cross-age tutoring, during programs of fewer than 8 weeks, in sessions of less than 30 minutes is optimal for improving students' academic outcomes.
Journal ArticleDOI
Music-reading expertise alters visual spatial resolution for musical notation
TL;DR: The hypothesis that, with extensive experience, music-reading experts have acquired visual skills such that they experience a smaller crowding effect, resulting in higherMusic-reading fluency is tested, consistent with the idea that experience alleviates these limitations.
Journal ArticleDOI
Validity of a multi-domain computerized cognitive assessment battery for patients with multiple sclerosis.
Daniel Golan,Jeffrey Wilken,Glen M. Doniger,Timothy Fratto,Robert L. Kane,Jared Srinivasan,Myassar Zarif,Barbara Bumstead,Marijean Buhse,Lori Fafard,Ilir Topalli,Mark Gudesblatt +11 more
TL;DR: The specific computerized assessment battery evaluated is valid for cognitive screening of people with MS and may be more likely to detect prolonged response times and impaired executive function.
Responsabilidad Social Universitaria: influencia de valores y empatía en autoatribución de comportamientos socialmente responsables
TL;DR: In this article, 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
First aid as an important traffic safety factor–evaluation of the experience–based training
TL;DR: In this article, a 16-hour experience-based first-aid course was designed and compared with the standard 4-h training, and three levels of competencies were tested: 1. Knowledge; 2. Skills; 3. Performance in simulated situation.
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.