A class of naive estimators of correlation was tested for robustness, accuracy, and efficiency against Pearson's r, Tukey's r t , and Spearman's r o . It was found that this class of estimators seems in some respects to be superior being less affected by outliers, reasonably efficient, and frequently more easily calculated. The definition and details of the use of these naive estimators are the subject of this paper.
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Wainer et al. (1979) studied this question.
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