What Is a Dichotomous Variable?
Last Updated Apr 4, 2020 7:27:31 PM ET

Dichotomous variables are variables that have two levels. A very common example of a dichotomous variable is gender, which has two outcomes and is reported as male or female.
Dichotomous variables are part of a larger type of variable called a categorical variable. Categorical variables are not measured by numbers, but they can instead be categorized. Dichotomous variables are any categorical variable that has two distinct outcomes. Survey questions that yield yes or no answers are also examples of dichotomous variables. When formulating hypotheses to test a dichotomous variable, it is essential to test the variables as mutually exclusive. This means that one outcome excludes the possibility of the other outcome.
More From Reference

How Do You Apply for Social Security Benefits?

How Did the VW Beetle Become an Emblem of the '60s?

We Explain the Complicated History of Myanmar and Aung San Suu Kyi

Financing the Future: Setting Up Savings Plans for Grandchildren

Responsible Retirement: What's the Maximum Amount You Can Contribute to a 401(k)?

10 Small Business Grants for Women Entrepreneurs