Creating Valid and Effective Measures: Using –optifact- to Create Better Summated Rating Scales

Paul Millar ()

North American Stata Users' Group Meetings 2005 from Stata Users Group

Abstract: While scales are an integral part of the measurements involved in many research projects, few researchers make the effort to ensure that these scales are valid, reliable, uni-dimensional and consistent with relevant correlates. This presentation outlines how the Stata routine –optifact- can be used to create summated rating scales that are better measures of the concept at issue, yet often require fewer questions. An example using a major Canadian survey is presented to illustrate the potential for better analysis and potentially substantial cost savings in survey research.

Date: 2005-07-12

Downloads: (external link)
http://repec.org/nasug2005/BostonScales.ppt presentation slides (application/x-mspowerpoint)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Access Statistics for this paper

More papers in North American Stata Users' Group Meetings 2005 from Stata Users Group
Contact information at EDIRC.
Series data maintained by Christopher F Baum ().