The assumption of local independence is central to all item response theory (IRT) models.
Violations can lead to inflated estimates of reliability and problems with construct validity. For …

This paper addresses methodological issues that concern the scaling model used in the
international comparison of student attainment in the Programme for International Student …

Background To achieve full potential in user-oriented eHealth projects, we need to ensure a
match between the eHealth technology and the user's eHealth literacy, described as …

The Parental Stress Scale (PSS) was developed as a short measure of perceived stress
resulting from being a parent. The current study examined the psychometric properties of the …

Background Hidradenitis suppurativa (HS) is a chronic, inflammatory condition that can have
a large negative impact on health‐related quality of life (HRQOL). A reliable and validated …

Abstract Background In Australia, the stress levels have increased over the years, impacting
on the physical and mental health of the general population. The aim of the present study …

The unidimensional Rasch model for dichotomous items and the unidimensional Rasch
model for more than two ordered categories rely on the assumption of local independence …

Background Experiencing parental stress is common among parents of children of all ages
and is elevated in families characterized by stressors such as poverty, mental health …

Effects of Varying Magnitude and Patterns Page 1 JOURNAL OF APPLIED MEASUREMENT,
9(2), 105-124 Copyrightº 2008 Effects of Varying Magnitude and Patterns of Response …

Methodology for making cross-national comparisons is an area of increasing interest in
social and public health related research. When studying socio-economic differences in …