The term dichotomization refers to
A) a situation in which the scores on a continuous independent variable are split into two groups, with each group being treated as a category of the independent variable.
B) including only two independent variables in a multiple regression analysis.
C) comparing the results of multiple regression analyses of the same variables in two groups, such as men and women.
D) splitting a data set into two subsamples, running regression analyses in each subsample, and using the mean value of each regression coefficient as the best estimate of that coefficient.

Question

Quizplus · Accepted Answer

Dichotomization refers to the process of splitting a continuous independent variable into two groups or categories, usually by using a cutoff point, and treating each group as a categorical variable. This can be problematic as it may result in loss of information, reduce statistical power, and introduce bias in the analysis.

The Term Dichotomization Refers to