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Determining Sample Size1

Published online by Cambridge University Press:  31 May 2012

G. B. Oakland
G. B. Oakland
Affiliation:
Statistical Research and Service Unit, Ottawa, Ontario
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Extract

The problem of sample size usually confronts the research worker in the initial stages of an investigation. Many short methods have been used for determining sample size such as extracting the square root of the number of boxes or taking a 10 percent sample. While these techniques are easy to use nevertheless they are not based upon a statistical evaluation of the experiment. Sample size in an experiment is often dictated by the amount of time, money and labor available but even under such conditions it is possible to evaluate the precision of the experiment when the number of replications is dictated by necessity.

Type
Articles
Information
The Canadian Entomologist , Volume 85 , Issue 3 , March 1953 , pp. 108 - 113
Copyright
Copyright © Entomological Society of Canada 1953

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References

Mainland, D. 1948. Statistical methods in medical research, I. Qualitative statistics (enumeration data). Can. Jo. Res. Sect. E. 26: 104.Google ScholarPubMed
Snedecor, G. W. 1946. Statistical Methods. Iowa State College Press, Ames, Iowa. 4th Ed. p. 445.Google ScholarPubMed