Movies are to _____ as the waterfall illusion is to _____. A) ...

[WWatsford]

Movies are to _____ as the waterfall illusion is to _____.
 
  A) apparent movement; induced movement
  B) real movement; apparent movement
  C) movement aftereffects; stroboscopic movement
  D) apparent movement; movement aftereffects

Question 2

One of the major difficulties involved in studying human beings is that
 
  a. they often behave differently when they are being studied than they would otherwise.
  b. suspicion checks reveal that measures of deception rarely work.
  c. participants will rarely give their informed consent to participate.
  d. the IRB only permits about 5 percent of all proposed studies to be carried out.

[amandalm]

Answer to Question 1

D

Answer to Question 2

a