Consider the statement, "The number of beers consumed the night before a test affects the grade." In this statement
A) beer is the dependent variable and test grade is the independent variable.
B) beer is the independent variable and test grade is the dependent variable.
C) both beer and grade are dependent variables.
D) both beer and grade are independent variables.

Question

Quizplus · Accepted Answer

In this statement, the variable being manipulated or controlled is the number of beers consumed, and thus it is the independent variable. On the other hand, the variable being measured (the outcome) is the test grade, which is dependent on the number of beers consumed, and thus it is the dependent variable. Therefore, the correct choice is B.

Consider the Statement, "The Number of Beers Consumed the Night