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Chapter 20: Cross-Sectional Designs
The cross-sectional study is the most frequently used descriptive design in research. Cross-sectional designs involve the collection of information from any given sample of population elements only once. They may be either single cross-sectional or multiple cross-sectional.
In single cross-sectional designs, only one sample of respondents is drawn from the target population, and information is obtained from this sample only once. These designs are also called sample survey research designs. In multiple cross-sectional designs, there are two or more samples of respondents, and information from each sample is obtained only once. Often, information from different samples is obtained at different times.
The following examples illustrate single and multiple cross-sectional designs, respectively.
A cross-sectional study based on a single survey was conducted to ...