Point-biserial correlation coefficient (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Point-biserial correlation coefficient" in English language version.

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archive.org

A correct version of point biserial formula can be found in Glass, Gene V.; Hopkins, Kenneth D. (1995). Statistical Methods in Education and Psychology (3rd ed.). Allyn & Bacon. ISBN 0-205-14212-5.

doi.org

MacCallum, Robert C.; et al. (2002). "On the Practice of Dichotomization of Quantitative Variables". Psychological Methods. 7 (1): 19–40. doi:10.1037/1082-989X.7.1.19. hdl:1808/1495.

handle.net

hdl.handle.net

MacCallum, Robert C.; et al. (2002). "On the Practice of Dichotomization of Quantitative Variables". Psychological Methods. 7 (1): 19–40. doi:10.1037/1082-989X.7.1.19. hdl:1808/1495.

rasch.org

Linacre, John (2008). "The Expected Value of a Point-Biserial (or Similar) Correlation". Rasch Measurement Transactions. 22 (1): 1154.