Which of the following research studies would you possibly classify as violating the tenets of science and hence, not legitimate in reaching a valid conclusion? a.            Comparing class test...

Which of the following research studies would you possibly classify as violating the tenets of science and hence, not legitimate in reaching a valid conclusion?

a.            Comparing class test results after maintaining uniformity in study conditions

b.            Identifying what type of personality leads to increased social media usage

c.             Observing child behavior in response to punishment

d.            Promoting a health drink based on parent’s perception of height increase