Sample Size Requirements for Estimating Pearson, Kendall and Spearman Correlations
2000/03/01 by Douglas G. Bonett, Thomas A. Wright · 1,075 citations
Decision Sciences · Mathematics · #Advanced Statistical Methods and Models #Confidence interval #Correlation #Mathematics #Pearson product-moment correlation coefficient #Sample (material) #Sample size determination #Scientific Measurement and Uncertainty Evaluation #Spearman's rank correlation coefficient #Statistical Methods and Bayesian Inference #Statistics #Type I and type II errors
paper · doi:10.1007/bf02294183
published in Psychometrika 65(1), 23-28 (Springer Science+Business Media)
openalex publication_date 2000/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract
Interval estimates of the Pearson, Kendall tau- a and Spearman correlations are reviewed and an improved standard error for the Spearman correlation is proposed. The sample size required to yield a confidence interval having the desired width is examined. A two-stage approximation to the sample size requirement is shown to give accurate results.
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