
Concept explainers
Seating and the Liberal Arts at UC-Davis
The ucdavis1 data frame gives information on a random sample of students from the University of California at Davis. One variable, Seat, records where the student preferred to sit in a classroom (Front, Middle or Back), and another variable, Sex, says whether or not the student was a male or female student.
We are interested in the following Research Question:
Do male and female students at UC-Davis differ in their seating preferences, and if so, how?
Which of the two variables in the Research Question should be considered the explanatory variable, and which should be considered the response variable?
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( ) Sex is explanatory, and Seat is the response.
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( ) Neither variable can be considered to be an explanatory variable.
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( ) Both of the variables are explanatory.
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( ) Seat is explanatory, and Sex is the response.

Note that ,
The response variable is the focus of a question in a study or experiment.
An explanatory variable is one that explains changes in that variable. It can be anything that might affect the response variable.
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