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A Critical Discussion of Null Hypothesis Significance Testing and StatisticalPower Analysis within Psychological Research

A Critical Discussion of Null Hypothesis Significance Testing and StatisticalPower Analysis... The uses of null hypothesis significance testing (NHST) and statistical poweranalysis within psychological research are critically discussed. The articlelooks at the problems of relying solely on NHST when dealing with small andlarge sample sizes. The use of power-analysis in estimating the potential errorintroduced by small and large samples is advocated. Power analysis is notrecommended as a replacement to NHST but as an additional source of informationabout the phenomena under investigation. Moreover, the importance of conceptualanalysis in relation to statistical analysis of a hypothesis is emphasised. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nordic Psychology American Psychological Association

A Critical Discussion of Null Hypothesis Significance Testing and StatisticalPower Analysis within Psychological Research

Nordic Psychology , Volume 59 (3): 8 – Oct 1, 2007

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References (17)

Publisher
American Psychological Association
Copyright
Copyright © 2007 The authors & Nordic Psychology
ISSN
1901-2276
eISSN
1904-0016
DOI
10.1027/1901-2276.59.3.223
Publisher site
See Article on Publisher Site

Abstract

The uses of null hypothesis significance testing (NHST) and statistical poweranalysis within psychological research are critically discussed. The articlelooks at the problems of relying solely on NHST when dealing with small andlarge sample sizes. The use of power-analysis in estimating the potential errorintroduced by small and large samples is advocated. Power analysis is notrecommended as a replacement to NHST but as an additional source of informationabout the phenomena under investigation. Moreover, the importance of conceptualanalysis in relation to statistical analysis of a hypothesis is emphasised.

Journal

Nordic PsychologyAmerican Psychological Association

Published: Oct 1, 2007

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