Jenny has an intense interest in food but eats sparingly and with disgust. She has an intense fear of becoming obese, and even though she looks emaciated, she still claims she "feels fat" and refuses to eat enough to maintain
even a minimal normal body weight for her frame. She is most likely suffering from ______.
a. anorexia nervosa c. bulimia
b. Karposi's anemia d. Huntington's chorea
A
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The __________ refers to a theory that a gap between the maturation of the brain's reward circuit and the executive control network leads to a high rate of risk-taking.
A. prefrontal cortex model of risk-taking B. circadian timing system C. ventral striatum D. dual systems model of risk-taking
Which of the following statements does NOT apply to the results of research on differences between how experts and novices solve problems?
a. Experts possess more knowledge about their fields than novices. b. Experts often organize problems differently than novices, based on principles. c. Experts often spend more time analyzing problems than novices. d. Being an expert in one field can transfer to better problem solving in another field.
Differences in intelligence due to socioeconomic status _____ from early childhood to the late teenage years.
A) increase B) decrease C) increase then decrease D) remain constant
A test has __________ validity if the researcher is able to control all extraneous variables so that the only variable influencing the results of the study is the independent variable
a. continuous b. internal c. face d. external