The independent variable in the hypothesis 'the longer a U.S.line worker has been employed at a U.S.-based assembly plant, the more difficult it is for that worker to find new employment when the assembly plant moves to Mexico' is
A)employment at US based assembly plant.
B)assembly plants in Mexico.
C)the length of time employed at line work in US assembly plant.
D)the length of time to find new employment.

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated or controlled by the experimenter. In this hypothesis, the variable that is being manipulated or controlled is the length of time employed at the US-based assembly plant. Therefore, choice C, "the length of time employed at line work in US assembly plant", is the independent variable.

The Independent Variable in the Hypothesis 'The Longer a U