Question: a study is looking at the effects of using plyometrics...
A study is looking at the effects of using plyometrics in an AlterG treadmill to improve power output in older adults. The sample used in the study consists of males between the ages of 55 and 80. What, if any, problem(s) do we know this study will have?
A) It is likely going to lack internal validity.
B)It will be lacking in external validity
C) Participants are likely to injure themselves
D)This study looks fine the way it is
E) Both A and B