While the items for the 100-item ESI were included in the test on the basis of factor and reliability analyses, the selection of 30 of the items for the ESI-R was based upon item content uniqueness and reliability (e.g., corrected item-to-scale total correlations).
![[This page as RDF]](http://data.gesis.org/somesci/static/rdf-icon.gif){kind=icon}