After reading pp. 2628 of Psychology and Your Lifedescribe aresearch method Psyc

After reading pp. 2628 of Psychology and Your Lifedescribe aresearch method Psychologists use. If you were selected toparticipate in astudy which focuses on the averagecollege student what are some variables which might affect thevalidity of thisstudy? (Be sure to look at Figure 4 onpage 33 of Chapter 1.)