Which of the following statements is an example of selective mortality?
A)Today's older adults are less likely to seek mental health services because when they were growing up,mental illness was stigmatized.
B)Because exercise has become widely promoted in the media,many older adults are now exercising and thus healthier than predicted by earlier measures of their physical well-being.
C)Because of the effects of aging on the brain,older adults do worse than younger adults on measures of "fluid" intelligence.
D)In a longitudinal study,many of the elderly subjects died before the follow-up data was collected.

Question

Quizplus · Accepted Answer

Selective mortality refers to the phenomenon that individuals who are healthier or have fewer risk factors are more likely to survive and stay in a study over time. In this case, the fact that many elderly subjects died before follow-up data was collected suggests that those who were healthier or had lower mortality rates were more likely to remain in the study, which could bias the results. Choices A, B, and C do not pertain to selective mortality.

Which of the Following Statements Is an Example of Selective