2010•Institutional Research Information System (Università degli Studi di Brescia)Open access

The assessment of DIF on Rasch measures with an application to job satisfaction

Silvia Golia

Abstract

The present study addresses the issue in assessment of the impact of differential item functioning on the measures obtained applying the Rasch model when the questionnaire is formed by polytomous items. An item is said to display differential item functioning when it behaves differently among different groups of respondents (for example males and females). A simulation study is used in order to deal with the issue. A differential item functioning analysis is performed making use of a real database concerning the Survey on Italian Social Cooperatives carried out in 2007.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Rasch model, Differential item functioning, Polytomous Rasch model, Differential (mechanical device), Item response theory, Psychology, Computer science, Psychometrics