The literature in modern test theory on procedures for identifying items with differential item functioning (DIF) among two groups of persons includes the Mantel–Haenszel (MH) procedure. Generally, it is not recognized explicitly that if there is real DIF in some items which favor one...

The Early Development Instrument (EDI) is a population measure and an indicator of children’s developmental health before entering the school system. EDI-Sweden was translated and adapted from EDI-Canada. In 2011 a pilot study was conducted, as a first step of the preparations for nationwide...

The importance of social and economic conditions for people's health has been receiving more and more attention during the past 10 years. The question that is raised in this study is if the link between socio-economic factors in society, seen in the more composite sense, and cardiovascular...