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Dichotomous Variable

Definition

A dichotomous variable is a categorical variable that can only take on two possible values or categories. It divides the data into two mutually exclusive groups.

Analogy

Think of a dichotomous variable as a light switch - it can either be turned on or off, with no in-between options.

Related terms

Categorical Variable: A categorical variable is a type of variable that represents data in categories or groups.

Binary Variable: A binary variable is another term for a dichotomous variable, where there are only two possible outcomes.

Nominal Variable: A nominal variable is a type of categorical variable where the categories have no inherent order or ranking.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.