Which of the Following Is NOT a Methodological Problem in Longitudinal

question 58

Multiple Choice

Which of the following is NOT a methodological problem in longitudinal research that may lead to overly optimistic conclusions about the degree of maintenance of intellectual skills into late old age?

• A) attrition of the least healthy or able subjects from the sample
• B) unrepresentative samples, including primarily better-educated adults
• C) Subjects who take the same tests several times tend to improve with practice.
• D) differences in the amount of education between the oldest and youngest subjects