Background: Large-scale cross-national studies designed to measure student achievement use different social, cultural, economic and other background variables to explain observed differences in that achievement. Prior to their inclusion into a prediction model, these variables are commonly scaled into latent background indices. To allow…

As the demands placed on the literacy coach have evolved, so too have the roles of these educational providers who are often responsible for working with school teams to turn around student performance on standardized literacy tests. One literacy coach based in a Queensland primary school recounts her experiences via open-ended interview over a…

Response to Intervention (RTI) models of reading instruction have received much attention in the literature (Fuchs, Mock, Morgan, & Young, 2003; Hosp & Ardoin, 2008; Justice, 2006). Such models call for frequent and high-quality assessment of students' skills. One skill that is vital in the process of learning to read is the ability to…

Discrimination has traditionally been parameterized for items but not other empirical factors. Consequently, if person factors affect discrimination they cause misfit. However, by explicitly formulating the relationship between discrimination and the unit of a metric, it is possible to parameterize discrimination for person groups. This article…