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
Student perception of initial transition into a nursing program: A mixed methods research study.
TL;DR: Significance of this research includes applications in faculty development and program supports to increase student success in the first year of nursing and to provide foundational success for ongoing nursing practice.
Journal ArticleDOI
Feasibility and Outcomes in a Pilot Randomized Controlled Trial of a Psychosocial Intervention for Adults With Congenital Heart Disease.
Adrienne H. Kovacs,Adrienne H. Kovacs,Sherry L. Grace,Sherry L. Grace,Amanda C. Kentner,Robert P. Nolan,Candice K. Silversides,M. Jane Irvine +7 more
TL;DR: It is determined it would be feasible to conduct a full-scale trial of a psychosocial intervention targeting adults with CHD, although with modifications to address practical barriers to participation and retention.
Journal ArticleDOI
Comparison of two dietary assessment methods by food consumption: results of the German National Nutrition Survey II
Marianne Eisinger-Watzl,Andrea Straßburg,Josa Ramünke,Carolin Krems,Thorsten Heuer,Ingrid Hoffmann +5 more
TL;DR: The cognitive effort essential for the diet history method to remember consumption of the past 4 weeks may be a source of inaccurateness, especially for inhomogeneous food groups.
Journal ArticleDOI
Open-label pilot for treatment targeting gut dysbiosis in myalgic encephalomyelitis/chronic fatigue syndrome: neuropsychological symptoms and sex comparisons
Amy Wallis,Michelle Ball,Henry L. Butt,Donald P. Lewis,Sandra McKechnie,Phillip Paull,Amber Jaa-Kwee,Dorothy Bruck +7 more
TL;DR: The original version of this article [1], published on 6 February 2018, contains a mistake in the ‘Conclusions’ section.
Journal ArticleDOI
Using Unexpected Questions to Elicit Information and Cues to Deceit in Interpreter-Based Interviews.
Aldert Vrij,Sharon Leal,Samantha Mann,Ronald P. Fisher,Gary Dalton,Eunkyung Jo,Alla V. Shaboltas,Maria Khaleeva,Juliana Granskaya,Kate A. Houston +9 more
TL;DR: The authors examined whether speech-related differences between truth tellers and liars are more profound when answering unexpected questions than when answering expected questions and also examined whether the presence of an interpreter affected these results.
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.