Which schedule of reinforcement is likely to lead to a scalloped look on the cumulative record, illustrating low rates of response followed by higher rates of response?
a) continuous
b) fixed-ratio
c) fixed-interval
d) variable-interval
C
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Occasional brief periods of stress ____
a. are harmful to an organism b. are harmful if the emotion is anger c. boost the activity of the immune system d. direct energy away from the synthesis of proteins
The type of learning characterized by a cessation, rather than an increase, in response is
a. habituation. b. classical conditioning. c. negative reinforcement. d. observational learning.
The __________ and __________ have a long period of sensitivity to teratogens
A) hands; feet B) palate; mouth C) arms; legs D) brain; eyes
As with short-term memory, the amount of information that adults can activate in working memory ranges from
A) 5 to 9 chunks. B) 12 to 15 chunks. C) 20 to 100 chunks D) 1 to 3 chunks.