Which of the following statements are true concerning meta-analysis?
◦ Meta-analysis is the practice of stating hypotheses after first looking at the data.
◦ Meta-analysis is used to prove statistical significance but not clinical significance.
◦ Meta-analysis is used to prove clinical significance but not statistical significance.
◦ A meta-analysis considers all studies done to test a particular treatment and tries to reconcile different conclusions, attempting to determine whether other factors played a role in the reported outcomes.