scholarly journals Sample Size Determination and Statistical Power Analysis in PLS Using R: An Annotated Tutorial

2015 ◽  
Vol 36 ◽  
Author(s):  
Miguel Aguirre-Urreta ◽  
Mikko Rönkkö
Keyword(s):  
Sample Size ◽  
Power Analysis ◽  
Statistical Power ◽  
Sample Size Determination ◽  
Size Determination ◽  
Statistical Power Analysis

Statistical Power Analysis can Improve Fisheries Research and Management

1990 ◽  
Vol 47 (1) ◽  
pp. 2-15 ◽  
Author(s):  
Randall M. Peterman
Keyword(s):  
Sample Size ◽  
Power Analysis ◽  
Statistical Power ◽  
Small Sample Size ◽  
Industrial Effluent ◽  
Small Sample ◽  
Detectable Effect ◽  
Type Ii ◽  
Sampling Variability ◽  
Statistical Power Analysis

Ninety-eight percent of recently surveyed papers in fisheries and aquatic sciences that did not reject some null hypothesis (H0) failed to report β, the probability of making a type II error (not rejecting H0 when it should have been), or statistical power (1 – β). However, 52% of those papers drew conclusions as if H0 were true. A false H0 could have been missed because of a low-power experiment, caused by small sample size or large sampling variability. Costs of type II errors can be large (for example, for cases that fail to detect harmful effects of some industrial effluent or a significant effect of fishing on stock depletion). Past statistical power analyses show that abundance estimation techniques usually have high β and that only large effects are detectable. I review relationships among β, power, detectable effect size, sample size, and sampling variability. I show how statistical power analysis can help interpret past results and improve designs of future experiments, impact assessments, and management regulations. I make recommendations for researchers and decision makers, including routine application of power analysis, more cautious management, and reversal of the burden of proof to put it on industry, not management agencies.

scholarly journals Power Analysis and Sample Size Determination in Metabolic Phenotyping

2016 ◽  
Vol 88 (10) ◽  
pp. 5179-5188 ◽  
Author(s):  
Benjamin J. Blaise ◽  
Gonçalo Correia ◽  
Adrienne Tin ◽  
J. Hunter Young ◽  
Anne-Claire Vergnaud ◽  
...  
Keyword(s):  
Sample Size ◽  
Power Analysis ◽  
Sample Size Determination ◽  
Size Determination ◽  
Metabolic Phenotyping
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