All of the articles that use statistical analysis report the operational measures of theconcepts in their studies. Four articles that explore “how” and “why” issues also explain themain construct. With respect to attributes relevant to reliability, ten articles report how thestudy was conducted and the sources of data. Three articles report either research proceduresor data collection. Regarding external validity, three articles reveal the reasons for the siteselection and two articles use multiple sites, while others only reveal either the name or theindustry of the site. Overall, the reported procedures of these studies provide acceptablequality.