Kagan's research on temperament focuses on children who have either

The conditioned stimulus and the conditioned response in the classical procedure are referred to as conditioned because

a. they are dependent on each other.
b. their emergence is conditional on what happens during the experiment.
c. they are the opposite of the unconditioned stimulus and unconditioned response.
d. they set the conditions for the experiment.
e. they can be affected by conditions that are uncontrolled by the experimenter.

When an infant becomes accustomed to a stimulus and stops responding to it, he/she has become __________

a) over-stimulated. b) habituated. c) sensitized. d) adjusted.