Intellectual Function

1. What is the difference between a cross-sectional study and a longitudinal study?
2. Why are the results of cross-sectional studies comparing different age groups not always accurate?
3. Why can we not assume that the results of any study apply to ALL participants in that study?
4. Even if researchers reliably note that poor physical health is associated with poor cognitive function, why can we not conclude the former causes the latter?
5. What is the Troop effect?

Sample Solution