Question
If anyone knows the answrrs to any of these questions on the paper( preferably all) I...
If anyone knows the answrrs to any of these questions on the paper( preferably all) I would appreciate it.
Answers
3. a) Should a person who gives a placebo to a patient know that it is a placebo?
A study which is placebo controlled is most effective when it is double blinded, hence the person who gives placebo should not know about that.
3. b) In a double-blind study, the treatment group improves significantly more than the control group, can we conclude that the treatment is effective?
Yes, we can conclude that the treatment is effective when the treatment group improves significantly, as there is less possibility for biased findings in double blinded placebo controlled study.
4. Answer: c) Without a control group, we cannot be sure that the improvement was due to the medication.
In this scenario, there might be an improvement in patient's condition relevant to each doses of medication, but to conclude the drug as effective there must be a control group.