Day 1: Introduction to multi-level data problems
Day 1: Introduction to multi-level data problems
Day 1: Introduction to multi-level data problems
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Stata and “robust” clustered standard errors”<br />
◮ One method of correcting for the effect of clusters is <strong>to</strong><br />
specify the vce(cluster clustvar) as an option <strong>to</strong><br />
regression commands<br />
◮ This relaxes the requirement that the errors be independent,<br />
by allowing them <strong>to</strong> be correlated within each cluster group
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