Differential item functioning (DIF) can lead to an unfair advantage or disadvantage for certain subgroups in educational and psychological testing. Therefore, a variety of statistical methods has been suggested for detecting DIF in the Rasch model. Most of these methods are designed for the...

Unambiguously, nowadays healthy eating patterns have attracted the interest of researchers, society and media. Mainly four key widespread messages “eat less fat”, “eat less sugar”, “eat less salt” and “eat more fibre”, are among those widely perceived as healthy eating behavior....

For detecting differential item functioning (DIF) between two groups of test takers, their item parameters need to be aligned in some way. Typically this is done by means of choosing a small number of so called anchor items. Here we propose an alternative strategy: the selection of an anchor...

The specific purpose of the research was to construct an achievement test in the area of philosophy of education for master level students in universities of Punjab (Bahauddin Zakariya University Multan, The Islamia University of Bahawalpur and University of Sargodha, Sargodha. Test comprises 60...

Abstract In this paper we consider conditional maximum likelihood (cml) estimates for item parameters in the Rasch model under random subject parameters. We give a simple approximation for the asymptotic covariance matrix of the cml-estimates. The approximation is stated as a limit theorem when...

For analyzing item response data, item response theory (IRT) models treat the discrete responses to the items as driven by underlying continuous latent traits, and consider the form of conditional probability of the response to each item given the latent traits. In a similar fashion, log-linear...

This article analyses the Royal Malaysian Navy (RMN) fleet personnel's responses to survey questionnaire items on the knowledge creation processes, in order to identify the current extent of processes within the fleet. Through knowledge creation, new knowledge is created, starting with the...

The general objective of the study is to quantify the economic potential of 98 municipalities in the province of Seville in 2007 and 2012 from empirical research based on the application of the Rasch model. This will allow us to design a generic analytical framework or frame of reference for the...