group that will help to increase the validity of the experiment. The control group will be the group of subjects that does not participate in the exercise part of the experiment. 4) Well the scores of this experiment would be based on the stress test given to the subjects at the end of their exercise. The test would show that after the subject had exercised the subjects would have measured a lower stress level on their test compared to their score prior to exercise. The validity of this experiment was increased with the help of a control group and also with the use of random assignment. These two factors helped to keep the experiment from having flaws that might alter the results. The experiment overall was valid.5) One change that could be made if this experiment was to be tested in the future would be the age of the subjects. If the subjects measured were older with careers there might be higher levels of stress measured due to more responsibilities. The age of the subject could reveal a lot more about their stress level. Another change in the experiment could be the backgrounds of the subjects. If that was altered it could reveal that certain races lead more stressful lives or rather work harder than others. ...
