Published On: 27/06/2014|Categories: 2013–2017, Vol.35 (2), Vol.35 (2014)|


This paper describes how a Many Faceted Rasch Measurement (MFRM) approach can be applied to performance assessment focusing on rater analysis. The article provides an introduction to MFRM, a description of MFRM analysis procedures, and an example to illustrate how to examine the effects of various sources of variability on test takers’ performance on a writing test by means of a MFRM analysis. Results highlight the usefulness of the MFRM to detect raters that have extreme values on the severity continuum. MRFM provides a common metric for the facet scores (test takers, tasks, raters). This is advantageous because it facilitates understanding of the assessment process as well as providing objective measurement of facet elements.

Open Access