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
The effect of SNPs in CYP450 in chloroquine/primaquine Plasmodium vivax malaria treatment.
Vinicius A. Sortica,Juliana Dal-Ri Lindenau,Maristela G Cunha,Maria Do Ohnishi,Ana Maria Revorêdo da Silva Ventura,Ândrea Kc Ribeiro-dos-Santos,Sidney Eb Santos,Luciano Sp Guimarães,Mara H. Hutz +8 more
TL;DR: From baseline to first day of treatment, wild-type individuals achieved greater reduction of gametocytes than low-activity allele carriers, and CYP2C9 and CyP3A5 genes showed a trend for gametocytemia and parasitemia clearance rates.
Journal ArticleDOI
Bosniak classification of cystic renal masses version 2019 does not increase the interobserver agreement or the proportion of masses categorized into lower Bosniak classes for non-subspecialized readers on CT or MR.
Eduardo Oliveira Pacheco,Ulysses dos Santos Torres,Aldo Maurici Araújo Alves,Daniel Bekhor,Giuseppe D'Ippolito +4 more
TL;DR: BC19, when compared to CBC, did not improve interobserver agreement nor diminished the proportion of masses categorized into lower Bosniak classes among non-subspecialized readers.
Journal ArticleDOI
Transcranial Direct Current Stimulation Does Not Counteract Cognitive Fatigue, but Induces Sleepiness and an Inter-Hemispheric Shift in Brain Oxygenation.
Guillermo Borragán,Medhi Gilson,Carlos Guerrero-Mosquera,Eleonora Di Ricci,Hichem Slama,Philippe Peigneux +5 more
TL;DR: Increased self-reported sleepiness was associated with brain activity in the stimulated hemisphere after recovery from CF during the tDCS condition only, which might reflect a negative middle-term effect of tDCS application.
Journal ArticleDOI
Explicit Oral Narrative Intervention for Students with Williams Syndrome
TL;DR: Assessment of retelling of a TV cartoon tale and the effect of an individualized explicit instruction of the narrative structure showed significant changes in Williams syndrome students’ retellings, both at macro- and microstructure levels, when assessed following a 2-week interval.
Journal ArticleDOI
The Effects of an Intensive Reading Intervention for Ninth Graders with Very Low Reading Comprehension.
TL;DR: In this paper, the efficacy of a multicomponent reading intervention compared to a control condition on the reading comprehension of adolescent students with low reading comprehension (more than 1½ standard deviations below normative sample) was examined.
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.