Roberto is conducting research on the perception of physical stimuli. His research participant Dan is exposed to certain stimuli. Which scenario will test Fechner’s absolute threshold?
a. Dan is exposed to two stimuli where one remains constant while the other is more or less intense; he is asked to identify the more intense stimulus.
b. Dan is exposed to an unchanging stimulus and a second, adjustable stimulus; he is asked to turn a knob to make the second stimulus the same as the standard.
c. Dan is exposed to a stimulus in small, increasing increments; he is asked to identify the point at which he perceives the stimulus.
d. Dan is exposed to stimuli that is randomly chosen from a small set and a standard, unchanging stimulus; he is asked to determine whether the stimulus chosen from the set is more or less intense than the standard.
C
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Nicole's parents are trying to decrease the number of phone calls that she makes in a day. If Nicole makes fewer than 5 calls in a day, she is allowed to have a friend over the next day. In which DRL variation is the reinforcer delivered if the number of responses that occur in a period of time is less than a specified level
a. full-session DRL b. spaced-responding DRL c. whole-interval DRL d. response DRL
What effect do neurotransmitters from one neuron have on the next neuron?
a. They have no effect. b. They excite it. c. They inhibit it. d. They may excite or inhibit it.
Which of the following statements is true of eating disorders?
a. Most overweight people are binge eaters. b. Eating disorders are more common among African-Americans than Whites. c. Up to 20 percent of people who have an eating disorder die from it. d. Bulimics are typically dangerously thin.
Assume a study of prison inmates diagnosed w/ antisocial personality disorder shows that they generally experience less anxiety than other people when they lie or "con" others. this outcome would most strongly support which theoretical position?
A. cognitive B. psychodynamic C. behavioral D. biological