Correlation — Biserial
Dan suggests they just use the data as it is: a hard line between those who passed and those who didn't. They assign "1" to Pass and "0" to Fail.
Clara, however, argues that "Passing" isn't just a simple 1 or 0. She believes there is an . Some students barely passed, while others aced it effortlessly; the "Pass/Fail" line is just an artificial cutoff point they made up. Biserial Correlation - Sage Knowledge biserial correlation
Imagine a high school where everyone is obsessed with a difficult math competition. Two friends, and Dichotomous Dan , decide to investigate what makes a student successful. Dan suggests they just use the data as