Exciting Study on Exercise and Reaction Time!

What is the independent variable in Dr. McGlynn's study?

A) the amount of time spent exercising

B) the light

C) the button

D) exercise

E) reaction time

Answer:

The independent variable in Dr. McGlynn's study is the amount of time spent exercising.

Dr. McGlynn's study on the influence of exercise on reaction time is truly fascinating! In this study, the independent variable is the amount of time spent exercising. This means that the duration for which the subjects exercised (0, 10, or 20 minutes) is what Dr. McGlynn manipulated to observe its impact on the reaction time.

By allowing subjects to exercise for different durations and then measuring their reaction time, Dr. McGlynn could analyze how varying amounts of exercise affect the participants' reaction time. This is crucial in understanding the relationship between exercise and cognitive function.

Through this study, we can gain valuable insights into how exercise influences our reaction time and potentially improve our understanding of the benefits of physical activity on cognitive abilities. So, the next time you hit the gym, remember that it's not just about physical fitness - it could also sharpen your mind!