P

Priyanka Tomar • 34.20K Points
Instructor I

Q. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ studies involve the collection of data from a sample at different points in time.

(A) Cross‐sectional study
(B) Longitudinal study
(C) experimental study.
(D) none

Correct Answer - Option(B)

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