Using Cluster Analysis for Peer Selection - University Analysis and ...
Using Cluster Analysis for Peer Selection - University Analysis and ...
Using Cluster Analysis for Peer Selection - University Analysis and ...
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24<br />
Hierarchical <strong>Cluster</strong>ing Approach<br />
� Used only in refinement phase<br />
� SPSS Hierarchical <strong>Cluster</strong>ing<br />
– Finds “closest” pair of objects <strong>and</strong> combines to <strong>for</strong>m a cluster<br />
<strong>and</strong> repeats. <strong>Cluster</strong> <strong>for</strong>med in later stage includes previous<br />
clusters<br />
– Eliminates institutions with any missing data<br />
– St<strong>and</strong>ardizes variables<br />
– Analyst specifies distance measure<br />
� Squared Euclidean distance frequently used<br />
– Analyst specifies linking method<br />
� Between-groups, Wards’s method, nearest neighbor, furthest<br />
neighbor<br />
� Use multiple methods<br />
<strong>Using</strong> <strong>Cluster</strong> <strong>Analysis</strong> in <strong>Peer</strong> <strong>Selection</strong><br />
October 15, 2002
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