Surveys using a(n)_________ design take a sample of the population at a single point in time and expect to find variability of the independent variable.A _________ design follows the same sample over a period of time.

Question

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Cross-sectional design involves taking a sample at a single point in time and analyzing it, whereas longitudinal design involves following the same sample over a period of time. Other options (B, C, and D) are not commonly used terms in survey research designs.

Surveys Using A(n)_________ Design Take a Sample of the Population