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Terrell, Colin D. – Educational and Psychological Measurement, 1982
Tables are presented giving the critical values of the biserial and the point biserial correlation coefficients (when the null hypothesis assumes a value of zero for the coefficient) at the 0.05 and the 0.01 levels of significance. (Author)
Descriptors: Correlation, Mathematical Formulas, Probability, Research Tools
Peer reviewed Peer reviewed
Terrell, Colin D. – Educational and Psychological Measurement, 1982
A table is presented that directly converts any known point biserial coefficient to the biserial coefficient, providing the largest proportion of the dichotomous variable is also known. (Author)
Descriptors: Computation, Correlation, Data Analysis, Mathematical Formulas
Peer reviewed Peer reviewed
Millsap, Roger E.; And Others – Educational and Psychological Measurement, 1990
Sixteen tables are presented for critical values of the larger of two sample correlation coefficients from two independent samples, given the sample size and the value of the smaller correlation. These tables allow quick assessment of significance without requiring calculation of the test statistic. (SLD)
Descriptors: Correlation, Mathematical Models, Sample Size, Statistical Significance