What additional evidence would have strengthened K. Werner Schaie's longitudinal study of intellectual abilities over time?
A. People who live in different geographical areas would provide evidence as to whether the results are limited geographically.
B. People with different economic backgrounds would provide insight into the effects on intellectual development variables.
C. People with differing levels of access to health care would provide insight on the effects of these variables on intellectual ability over time.
D. All of these
Answer: D
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In 2007, the sex ratio of unmarried males age 65 and over to unmarried females of the same age was about
A) 72.7. B) 52.7. C) 44.3. D) 12.7.
The binuclear family is best describes as
A) a family in which members live in to different households. B) children born into a new blended family. C) a single-parent family. D) adult children returning to live with their parents.
The NCVS collects data from:
a. agencies that help crime victims. b. everyone who reports a crime to the police. c. a random sample of crime victims. d. a representative sample of U.S. households.
Sexual orientation refers to the gender that a person is attracted to:
- emotionally - physically - sexually - All of these are correct.