Some researchers want to compare 60-year-olds to 80-year-olds,but they worry about finding similar groups of people.Which design would be best for minimizing that problem?
A)Cross-sectional
B)Longitudinal
C)Single-blind
D)Double-blind

Question

Some researchers want to compare 60-year-olds to 80-year-olds,but they worry about finding similar groups of people.Which design would be best for minimizing that problem?​
A)Cross-sectional
B)​Longitudinal
C)​Single-blind
D)​Double-blind

Quizplus · Accepted Answer

Longitudinal design would be the best choice as it follows a group of people over time, allowing researchers to compare the same individuals at different ages. This would result in similar groups of people as they were initially recruited from the same cohort.

Some Researchers Want to Compare 60-Year-Olds to 80-Year-Olds,but They Worry