Sample Size

Known as: Sample Sizes, Size, Sample, Sizes, Sample 
The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough… (More)
National Institutes of Health

Papers overview

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Highly Cited
2010
Highly Cited
2010
A number of issues can affect sample size in qualitative research; however, the guiding principle should be the concept of… (More)
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Highly Cited
2008
Highly Cited
2008
A wide range of modelling algorithms is used by ecologists, conservation practitioners, and others to predict species ranges from… (More)
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Highly Cited
2007
Highly Cited
2007
Mediation models are widely used, and there are many tests of the mediated effect. One of the most common questions that… (More)
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Highly Cited
2006
Highly Cited
2006
Species distribution models should provide conservation practioners with estimates of the spatial distributions of species… (More)
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Highly Cited
2005
Highly Cited
2005
A bias correction to the Akaike information criterion, AIC, is derived for regression and autoregressive time series models. The… (More)
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Highly Cited
2005
Highly Cited
2005
An important problem in multilevel modeling is what constitutes a sufficient sample size for accurate estimation. In multilevel… (More)
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Highly Cited
2004
Highly Cited
2004
The factor analysis literature includes a range of recommendations regarding the minimum sample size necessary to obtain factor… (More)
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Highly Cited
2001
Highly Cited
2001
A framework for hypothesis testing and power analysis in the assessment of fit of covariance structure models is presented. We… (More)
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Highly Cited
1998
Highly Cited
1998
This article presents methods for sample size and power calculations for studies involving linear regression. These approaches… (More)
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Highly Cited
1992
Highly Cited
1992
One possible reason for the continued neglect of statistical power analysis in research in the behavioral sciences is the… (More)
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