A researcher is interested in the effect of exercise on stamina in elderly patients.The patients are randomly assigned to be in a high-exercise or low-exercise training program for 8 weeks.At the end of the program,their stamina is measured by seeing how long they can walk comfortably on a treadmill.In this study,the dependent variable is:

Question

Quizplus · Accepted Answer

The dependent variable is the variable that is being measured or tested in order to determine the effect of the independent variable, which is the variable that is being manipulated by the researcher. In this case, the independent variable is the exercise program (high versus low) and the dependent variable is the patients' stamina, which is measured by the number of minutes they can walk comfortably on the treadmill. Therefore, the best choice is A, number of minutes spent comfortably on the treadmill.

A Researcher Is Interested in the Effect of Exercise on Stamina