Which one of the following variables cannot be dichotomized?
A) age of participant
B) reaction time in milliseconds
C) favorite type of soda
D) Number of coffees consumed per day

Question

Quizplus · Accepted Answer

Variables that can be dichotomized have only two possible categories or responses (e.g. male/female, yes/no). Age (A) and number of coffees consumed per day (D) can be dichotomized by setting a cutoff point and classifying individuals into two groups based on whether their value is above or below the cutoff. Reaction time in milliseconds (B) can be dichotomized by setting a threshold value and classifying responses as either "fast" or "slow" based on whether they are above or below the threshold. However, favorite type of soda (C) cannot be dichotomized because there are more than two possible responses (e.g. Coca-Cola, Pepsi, Sprite, etc.).

Which One of the Following Variables Cannot Be Dichotomized