On a multiple FR 50 VI 60-sec schedule of reinforcement, the first component is changed to an FR 300 schedule. As a result, the rate of response on the VI 60-sec schedule increases. This is an example of a(n) _____.
A) positive contrast effect
B) negative contrast effect
C) anticipatory contrast effect
D) discriminatory contrast effect
Question 2
On a multiple FI 20-sec VI 60-sec schedule of reinforcement, the first component is changed to an FI 200-sec schedule. As a result, the rate of response on the VI 60-sec schedule will most likely:
A) remain the same.
B) decrease.
C) increase.
D) become unpredictable.
(A) Common sites for cholelithiasis; (B) a gallbladder specimen with multiple gallstones.
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