Tamanho amostral para detecção de diferenças significativas entre tratamentos

Marcos Deon Vilela de Resende; José Alfredo Sturion; José Carlos Duarte Pereira

Sample size for detecting significant differences among treatments

Authors

Marcos Deon Vilela de Resende Embrapa Florestas
José Alfredo Sturion Embrapa Florestas
José Carlos Duarte Pereira Embrapa Florestas

Keywords:

Experimental Statistics, Sampling, Scientific Research.

Abstract

Sample sizes required for the detection of significant differences among experimental treatments in scientific research are presented. An approach based on the magnitude of the coefficient of determination (R2) among treatments was used. The required sample sizes decrease with increase in R2. For detecting true differences with magnitudes of one standard deviation of the trait, the required sample size are 15 to 5 for R2 ranging from 5% to 70%.

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Published

2004-12-30

Issue

No. 49 (2004): jul./dez.

Section

Scientific Notes

License

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How to Cite

RESENDE, M. D. V. DE; STURION, J. A.; PEREIRA, J. C. D. Sample size for detecting significant differences among treatments. Pesquisa Florestal Brasileira, n. 49, p. 109–120, 30 Dec.2004.

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Sample size for detecting significant differences among treatments

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