A tachistoscope is a device used to a. display visual stimuli ...

[laurencescou]

A tachistoscope is a device used to
 
  a. display visual stimuli for carefully measured time periods.
  b. intensify visual illusions.
  c. measure emotional responses.
  d. distort the appearance of visual stimuli.

Question 2

The concept of nonequivalent groups means ____.
 
  a. the researcher cannot control which people go into each group and cannot ensure that the groups are equivalent.
  b. the two groups have completely different characteristics.
 c. the researcher has randomly assigned people to groups so there is no guarantee that the groups are equal.
  d. the number of participants is different from one group to another.

[mrphibs]

Answer to Question 1

A

Answer to Question 2

a

[laurencescou]

Gracias!

[kthug]

Excellent