The purpose of the present study was to investigate the psychometric characteristics of the Job Responsibilities Scale (JRS). This article illustrates how factor analysis, cluster analysis, multidimensional scaling, and item response theory may be viewed as related data analyses, each capable of shedding insight into the structural dynamics of items designed to function as a measurement scale. Results of the analyses show that (a) the JRS measures a continuum of increasingly greater job responsibility tasks, and (b) each method of statistical analysis provides unique, yet complementary, evidence in support of the JRS continuum.
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