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Download full textWang, Lin; Fan, Xitao – 1997
Standard statistical methods are used to analyze data that is assumed to be collected using a simple random sampling scheme. These methods, however, tend to underestimate variance when the data is collected with a cluster design, which is often found in educational survey research. The purposes of this paper are to demonstrate how a cluster design…
Descriptors: Cluster Analysis, Educational Research, Error of Measurement, Estimation (Mathematics)
