Longitudinal studies involve: a) Testing several different age ...

[jerry coleman]

Longitudinal studies involve:
 
  a) Testing several different age groups on two or more measures.
  b) Testing age effects vs. cohort effects in a population.
  c) Testing one cohort over time.
  d) Testing the effects of time-of-measurement.

Question 2

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.

[lcapri7]

Answer to Question 1

c

Answer to Question 2

b

[jerry coleman]

Wow, this really help

[pangili4]

Gracias!