When Sam's mother made him a grilled cheese sandwich for lunch, Sam complained that he wanted two sandwiches because he was super hungry. After his mother cut his sandwich in half, Sam was satisfied that he would have enough to eat. Sam's behavior indicates that he does not understand ____ and is probably in the ____ stage of cognitive development
a. object permanence; sensorimotor
b. object permanence; preoperational
c. conservation; preoperational
d. conservation; concrete operational
C
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Although Freud conceptualized the libido as the life energy within the id, many people think of it as the
A. death instinct. B. sex drive. C. conscience. D. Oedipal conflict.
According to a number of animal studies, under which condition is the probability of violent behavior greatest?
A. Low acetylcholine turnover B. High acetylcholine turnover C. Low serotonin turnover D. High serotonin turnover
Which of these is a DSM-IV criterion for a manic episode in an affective disorder?
(a) inflated self-esteem or grandiosity (b) decreased need for sleep (c) talkativeness (d) increase in goal directed activity (e) all of the above
Thurstone believed that ______
a. people who are intelligent in one area are usually intelligent in other areas b. intelligence and creativity seldom go together c. intelligence and creativity usually go together d. specific mental abilities are relatively independent of each other