A rat is placed in a box where lever presses provide food only every 20 seconds
Eventually, the rat begins rapidly pushing the lever around every 18 seconds, having
learned on a
(a) fixed interval schedule (b) variable interval schedule
(c) fixed ratio schedule (d) variable ratio schedule
A
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Positive symptoms in schizophrenia include
a. behavioral deficits such as flattened emotion, apathy, and poverty of speech. b. behavioral excesses such as hallucinations, delusions, and bizarre behavior. c. compliant behavior such as medication monitoring. d. dissociative behaviors and the emergence of multiple personalities.
According to Kraepelin, mental disorders can be seen in terms of symptom clusters that have their own cause, course, and outcome, which are considered ____ in origin
a. sociocultural b. biological c. psychological d. culturally universal
Why do boys end up taller than girls on average?
A. Boys are genetically programmed to be taller than girls. B. Boys eat more food during puberty so they tend to grow taller. C. Boys start their growth spurt 2 years later than girls so they have an additional 2 years of prepubertal growth that the growth spurt builds on. D. Boys get more exercise than girls, which helps aid in their height and weight growth during puberty.
According to Rosch, __________ represent the important characteristics of a concept that
we readily recognize when we encounter it. a. stable elements b. superordinate concepts c. exemplars d. schemes e. units