If the experimenter knows which treatments the participants have ...

[Evvie72]

If the experimenter knows which treatments the participants have been administered, but the participants do not, the study is called:
 
  a. blind.
  b. double blind.
  c. placebo.
  d. invalid.

Question 2

The placebo effect is:
 
  a. purely psychological in origin.
  b. purely physiological in origin.
  c. both psychological and physiological in origin.
  d. not real.

[ebenov]

Answer to Question 1

A

Answer to Question 2

C

[Evvie72]

Thanks for the timely response, appreciate it

[carlsona147]

Gracias!