A study in which data are gathered at more than one point in time is called …
A)A cross-sectional study.
B)A longitudinal study.
C)An experimental study.
D)A randomized study.

Question

Quizplus · Accepted Answer

A longitudinal study involves gathering data at multiple points in time to observe changes and patterns over a period of time. This is in contrast to a cross-sectional study, which compares data from different groups at one point in time, and an experimental study, which involves manipulating variables to observe effects. A randomized study involves randomly assigning participants to different groups or conditions, which is not necessarily related to gathering data at multiple points in time.

A Study in Which Data Are Gathered at More Than