Manual Event (Session ID,DateTime,Event) = q5kupn9jkqeoudhtdfomj13h13 20250921015009 /sc/communities/there-are-many-dropout-cases-in-my-samples-of-older-adults-living-in-the-community-i-wonder-can-i-use-the-pretest-score-to-examine-differences-among-the-remaining-group-members/