One problem with informed consent is that a. full knowledge of ...

[Yolanda]

One problem with informed consent is that
 
  a. full knowledge of the experiment's purpose can alter participants' behavior.
  b. its use tends to undermine the external validity of the experiment.
  c. its use is limited to deception experiments.
  d. it is time-consuming.

Question 2

Knowing the experiment's purpose can alter participants' behavior. This is a major problem with
 
  a. debriefing.
  b. informed consent.
  c. archival research.
  d. basic research.

[briezy]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: B