Empirical assessment of published effect sizes and power in the recent cognitive neuroscience and psychology literature

We have empirically assessed the distribution of published effect sizes and estimated power by analyzing 26,841 statistical records from 3,801 cognitive neuroscience and psychology papers published recently. The reported median effect size was D = 0.93 (interquartile range: 0.64-1.46) for nominally...

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Bibliographic Details
Published in:	PLoS biology Vol. 15; no. 3; p. e2000797
Main Authors:	Szucs, Denes, Ioannidis, John P. A.
Format:	Journal Article
Language:	English
Published:	United States Public Library of Science 02.03.2017 Public Library of Science (PLoS)
Subjects:	Abbreviations Bayesian analysis Biology and Life Sciences Carp Circularity Clinical trials Cognition Cognition & reasoning Cognitive ability Cognitive Neuroscience - statistics & numerical data Company structure Computer programs Correlation analysis Crises Data acquisition Data collection Data processing Decision analysis Degrees of freedom Drafting software Ecology Editing Empirical Research Error analysis Functional magnetic resonance imaging Funding Humans Hypotheses Impact factors Incentives Management Medical wastes Meta Nervous system Neuroimaging Neurosciences Null hypothesis Personality Philosophy Physical Sciences Physics Probability Psychiatry Psychology Psychology - statistics & numerical data Publications - statistics & numerical data Reliability analysis Replication Research and Analysis Methods Resonance Reviews Science Science publishing Social interactions Social Sciences Software Spatial distribution Statistical analysis Statistical significance Statistics Studies Surveys and Questionnaires Systems analysis
ISSN:	1545-7885, 1544-9173, 1545-7885
Online Access:	Get full text
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