Page 80 - BUKU SYNOPSIS
P. 80
using the Many-Facet Rasch Measurement (MFRM) to anticipate such
pitfall. In addition, McNamara (1996) suggested the MFRM is a
suitable tool for analyzing the results of performance tests such as the
writing skill test.
The MFRM is an expansion of the original Rasch model based on
two considerations. The former is that there is no restriction on the
analysis of only two aspects (such as examinees and items), and the
latter is that the analyzed data need not be dichotomous (Eckes, 2019).
In addition, this model provides a framework for calibrating writing
skill assessments (Engelhard, 1992). Linacre (1989) asserts that
although the recent extension of the Rasch Model can calibrate multiple
dimensions simultaneously, it must be examined separately. As the
MFRM is derived from the Rasch Model, it can predict the subjective
measurement framework that results from statistical invariance across
raters, writing tasks, and other aspects of the writing assessment
procedure. To achieve validity and reliability in score measurement, the
MFRM accommodates research in the LLA context, focusing on
assessing writing essays comprised of relevant factors, such as
examinees, raters, and criteria.
In this study, examinees will be evaluated by two raters on the
following domains: organization, content, language employed, and
mechanics, using a sequential scale category/rating scale ranging from
1 to 4 (lowest to highest score). Therefore, the data are polytomous
75