________ is a type of research design involving a fixed sample of population elements that is measured repeatedly.The sample remains the same over time thus providing a series of pictures which,when viewed together,portray a vivid illustration of the situation and the changes that are taking place over time.
A)Exploratory research design
B)Causal research design
C)Cross-sectional research design
D)Longitudinal research design

Question

Quizplus · Accepted Answer

Longitudinal research design involves repeating measurements of the same sample over time, providing a series of snapshots that illustrate changes over time. A fixed sample is used, and the same individuals are observed or tested repeatedly.

________ Is a Type of Research Design Involving a Fixed