Melinda is nearly 18 years old and her parents are concerned about her. They feel she eats very little, worries too much about her weight, and has undue fears about her appearance. Her weight has dropped from 135 to less than 100 pounds, and Melinda's mother is worried about her undertaking strenuous exercises without substantial food intake. Which of the following is the most accurate statement concerning Melinda's situation?
A. Melinda's preoccupation with her body will stop once she has reached her target weight.
B. Melinda's parents are right to be concerned because Melinda is showing signs of anorexia nervosa.
C. Melinda is showing an adolescent's normal preoccupation with her bodily changes.
D. Melinda's behavior is showing signs of bulimia nervosa and her parents should be concerned.
Answer: B
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An insecure attachment at age 12 months has been associated with __________.
A. parental use of alcohol and drugs B. low parental stress level C. ample amounts of parental leisure time D. high marital satisfaction
In the landmark case of Atkins v. Virginia (2002), the U.S. Supreme Court ruled—consistent with laws already in effect in many states—that
a. schizophrenia is a mitigating factor that makes the death penalty unconstitutional. b. schizophrenia is not a mitigating factor that makes the death penalty unconstitutional. c. intellectual disability is a mitigating factor that makes the death penalty unconstitutional. d. intellectual disability is not a mitigating factor that makes the death penalty unconstitutional.
A statistics class has 60% females and 40% males. A researcher selects a sample having 80% males and 20% females. Why should the researcher be cautious of making inferences about the entire class based on the sample?
a. Because the sample appears to be representative of the population. b. Because the sample appears to be unrepresentative of the population. c. Because the opinions of the females in the sample will not be the same as those of the females in the population. d. Because the sample was too small.
The statistical technique used to statistically compare findings across many different research studies using some common evaluation measure is:
a. meta-analysis b. covariate analysis c. factor analysis d. analysis of variance