Question 1
You conduct an experiment on twenty 18-year-old male subjects to see how various intensities of exercise affect heart rate. Which is/are an independent variable?
◦ sex of subjects
◦ age of subjects
◦ intensity of exercise
◦ heart rate
◦ More than one answer is correct.
Question 2
You conduct an experiment on twenty 18-year-old male subjects to see how various intensities of exercise influence heart rate. Which is/are a dependent variable?
◦ sex of subjects
◦ age of subjects
◦ intensity of exercise
◦ heart rate
◦ More than one of the answers is correct.