biserial correlation coefficient

(symbol: r_b; r_bis) a measure of the strength of the association between a variable whose values may span a given range (e.g., grade point average) and a variable with only two discrete values (e.g., 0 or 1; pass or fail). It is distinct from the point biserial correlation coefficient in assuming that there is a normal distribution underlying most characteristics. Also called biserial r.

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Psychology term of the day

November 23rd 2024

risk factor

a clearly defined behavior or constitutional (e.g., genetic), psychological, environmental, or other characteristic that is associated with an increased possibility or likelihood that a disease or disorder will subsequently develop in an individual. Compare protective factor.