A Problem with Interpreting Results from Longitudinal Studies of Aging

question 11

Multiple Choice

A problem with interpreting results from longitudinal studies of aging is:

• A)Cohort effects are not controlled for.
• B)The findings may not generalize to other cohorts.
• C)The changes found may be the result of aging effects, not cohort effects.
• D)The most active and healthy subjects may drop out of the study, leading to pessimistic findings about aging.

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Definitions:

Multiple Births

Refers to the occurrence of more than one offspring, such as twins or triplets, born from the same pregnancy.

Sperm

The male gamete or reproductive cell that is capable of fertilizing the female ovum or egg to produce offspring.

Cervix

The cervix is the lower part of the uterus in the female reproductive system, connecting the uterus to the vagina.

Fallopian Tube

A pair of tubes along which eggs travel from the ovaries to the uterus in the female reproductive system.