Multiple Choice
The National Institutes of Health is conducting a study of aging that has been in progress for several years. This study requires that each participant agree to undergo a complete psychological and physical evaluation every three years. Information from this study has generated new findings in risk factors for many disorders. This research has a ________ design.
A) cross-sectional
B) randomized controlled
C) longitudinal
D) controlled case study
Correct Answer:
Verified
Correct Answer:
Verified
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