How many unique values do your variables have?
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More Information (if you need help deciding)
Two Values per Variable: This means that each of you variables contains only two distinct values. If the variable was eye color, for instance, then it could only have two colors (e.g. blue and brown). There are some variables with only two categories naturally, such as sex (male or female). These are also called binary variables.
More than Two Values: Select this option if one of your variables has more than two distinct values. An example of a potential variable like this is nationality (e.g. Zimbabwe, Latvia, Colombia), as long as there are more than two distinct values.