Dr. Sanders was excited to observe the effects of leptin on her obese laboratory mice and began to explore ways that leptin could be used to help people lose weight. It is likely that Dr. Sanders will
a. be equally successful with humans as with mice, once the side effects of leptin are controlled
b. not be successful with humans, because humans do not make leptin.
c. not be successful with humans, because obese humans are already producing high amounts of leptin and adding more would not help them lose weight.
d. not be successful with humans, because obese humans do not have receptors for leptin.
c
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The mean number of arrests for those who rarely attended high school would be
a. a statistic. b. a parameter. c. a parametric test. d. an inference.
When events are classified into mutually exclusive categories on a nominal scale (e.g., whether a behavior is present or absent), the most common descriptive statistic is
A. relative duration. B. an average (arithmetic mean). C. relative rank. D. relative frequency.
A personality psychologist who focuses on the stable patterns of aggressive behavior in schoolchildren that may be related to genetic predispositions follows the
A. psychoanalytic approach. B. biological approach. C. humanistic approach. D. behavioral/social learning approach.
Which of the following supports the view that addiction should not be defined only by the user's desire to avoid withdrawal symptoms?
A. Only drugs of abuse produce withdrawal symptoms. B. Many users purposely go through withdrawal to reset their tolerance level. C. Severity of withdrawal symptoms is correlated with the degree to which a drug is addictive. D. Addiction only occurs when a drug has already produced withdrawal symptoms.