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Mathematical Formulas2
Statistical Significance2
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Educational and Psychological…2
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Terrell, Colin D.1
Vegelius, Jan1
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Significance Tables for the Biserial and the Point Biserial.
Peer reviewed Peer reviewed
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
Significance Tests for the G-Index.
Peer reviewed Peer reviewed
Vegelius, Jan – Educational and Psychological Measurement, 1981
The G index is a measure of the similarity between individuals over dichotomous items. Some tests for the G-index are described. For each case an example is included. (Author/GK)
Descriptors: Hypothesis Testing, Mathematical Formulas, Mathematical Models, Nonparametric Statistics