A rat is placed in an operant chamber with two bars. On Bar A, the rat is reinforced on a FR 10 schedule, while on Bar B the rat is reinforced on a FR 40 schedule. According to maximizing theory, the rat will respond ______.
A. only on Bar A
B. only on Bar B
C. on both A and B
D. The rat will stop responding.
A. only on Bar A
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What research evidence could a developmental psychologist rely on when explaining to parents infant interaction and adult attention to children's faces?
A. Attachment represents a reaction to people around the infant. B. Infants' sociability is expressed in primitive ways during the first 6 months. C. Behaviors and cognitive imitation are essential for the positive recognition of interactions. D. Brain scanning techniques have found that the facial features of infants activate a specialized structure in the brain called the "fusiform gyrus" during an interaction.
In the United States, depression accounts for the majority of all mental hospital admissions
a. true b. false
Which of the following developmental psychology research questions would address the psychosocial domain?
a) "Can depression be triggered by the onset of puberty?" b) "Does birth order affect how adolescents relate to others?" c) "At what age does abstract thinking enhance decision making?" d) "Do toddlers understand the law of conservation?"
Which of the following people is abusing drugs but is not drug-dependent?
A) George, who uses marijuana but only on the weekends when his friends can join him. B) Philip, who rarely binge-drinks except when he is at fraternity parties. C) Quint, who is physically addicted to cigarettes. D) Roger, whose occasional drinking has gotten him in trouble at school.