An experimenter had people exercise much, a little, or not at all and then measured how much they ate at dinner 2 hours later. What was the independent variable in this experiment?

Question

Quizplus · Accepted Answer

The independent variable in this experiment is the amount of exercise, as it is the variable being manipulated by the experimenter to see its effect on the amount of food eaten at dinner. The other answer choices are either not being manipulated (delay between exercise and dinner, amount of food eaten) or not relevant to this particular experiment (type of food offered).

An Experimenter Had People Exercise Much, a Little, or Not