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biserial correlation coefficient

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Noun1.biserial correlation coefficient - a correlation coefficient in which one variable is many-valued and the other is dichotomous
biserial correlation
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
coefficient of correlation, correlation coefficient, correlation - a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation); "what is the correlation between those two variables?"


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The point biserial correlation coefficients shown in Tables 1 and 2 indicate the correlations (-1 to +1) between each item score and the cumulative score obtained from the remaining items across the test subject sample.
Construction and validation of the 4-item Dynamic Gait Index by Whitney, Susan L. / Physical Therapy
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