Dr. Perry can increase the chances that participants' characteristics will be equally distributed across the treatment groups by

A) carefully assigning the participants to the treatment groups according to their medical histories.
B) adding confounding variables to the experiment.
C) randomly assigning the participants to the treatment groups.
D) manipulating the dependent variable when exposing the participants to treatment conditions.

C

Psychology

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An event may receive little attention in consciousness because

a. it may be tagged as having too much potential for anxiety. b. the information is available but not retrievable. c. behaviors are highly automatic. d. All of these answers are correct.

Psychology

Operant conditioning was first discovered by:

a. Ivan Pavlov. b. Albert Bandura. c. B.F. Skinner. d. Edward Thorndike.

Psychology