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Biserial correlationA statistic used at ETS to describe the relationship between performance on a single test item and on the full test. It is an estimate of the correlation between the test score and an unobservable variable assumed to determine performance on the item and assumed to have a normal distribution (the familiar "bell curve"). Compare to correla [..]
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Biserial correlationn. in statistics, refers to the correlation between two variables when one variable is dichotomous (Y) and the other is continuous or multiple in value (X). The dichotomous variable may be naturally s [..]
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Biserial correlationAssociation between dichoimous and contiuous variables.
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