Describe a double-blind experiment and explain why blinding is ...

[khang]

Describe a double-blind experiment and explain why blinding is used. Define the term placebo effect as part of the answer.
 
  What will be an ideal response?

Question 2

x = 33, n = 35
 
  A) Appropriate B) Not appropriate

[emsimon14]

Answer to Question 1

A double-blind experiment is one in which neither the subjects nor the researchers know who is getting the treatment. Blinding is when the subject does not know whether he or she is receiving a treatment or a placebo. Blinding is used to counteract the placebo effect in which an untreated subject believes he or she is receiving a treatment and reports an improvement in symptoms due to this belief.

Answer to Question 2

B

[khang]

Excellent

[helenmarkerine]

TYSM