GRE (Graduate Record Examinations) Psychology Measurement and Methodology-Statistical Procedures Study Material (Page 4 of 25)

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Special Correlation Methods: Biserial Correlation Coefficient


Biserial Correlation Coefficient

  • Biserial Correlation Coefficient is used where there are two sets of scores for the same people or for two matched groups.
  • It is applicable when one of the variables is dichotomous ordinal data and also must have an underlying continuity. For instance, if we measure the depression, it is continuous in nature and also it…

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Special Correlation Methods: Point Biserial Correlation


Point Biserial Correlation

A point-biserial correlation is used to measure the strength and direction of the association that exists between one continuous variable and one dichotomous variable. In this case variables are measured on a dichotomous scale.


  • One of the variables in the given study must be measured on a continuous scale. For example, the measurement of intelligence with IQ scale is a continuous variable or weigh…

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