A study of 70-year-olds finds that they are more likely to participate in religious services than younger individuals. What can be concluded?
a. Increased age caused participants to be more religious.
b. Sex of participant is a confounding variable.
c. Since age and cohort are confounding variables, it is not possible to determine whether increased participation in religion is due to age or historical time in which one lived.
d. Time of measurement is a confounding variable.
Question 2
Dr. Geron Tology wants to survey young adults, middle-aged adults, and older adults on their physical health. Which research design is Dr. Tology most likely to use?
a. cross-sectional
b. longitudinal
c. experimental
d. sequential
The threespine stickleback (Gasterosteus aculeatus) has been used as a model organism for the study
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