Examlex
The ____________________ sample involves dividing the population into groups,then randomly selecting some of the groups and taking either a sample or a census of their members.
Longitudinal Design
A research method in which data is gathered for the same subjects repeatedly over a period of time to observe changes and development.
Inexpensive
Not costing a lot of money; affordable.
Cross-Sectional Design
A research method in which data is collected from a population, or a representative subset, at one specific point in time.
Longitudinal Study
A research design that involves repeated observations of the same variables (such as people) over short or long periods of time.
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