This volume gathers together a set of extensions of the Rasch model, one of the most prominent models for measurement in educational research and - cial science developed by Danish mathematician Georg Rasch. The idea for this volume emerged during a meeting of the Psychometric Society in M- terey, CA. At that meeting, friends and colleagues discussed news about the impending retirement of Dr. Jurgen ] Rost, an important innovator and m- tor in this ?eld. To recognize Jurgen's ] contributions, we decided to produce a collection of research on extending the Rasch model as well as embedding the...

This volume gathers together a set of extensions of the Rasch model, one of the most prominent models for measurement in educational research and - cial science developed by Danish mathematician Georg Rasch. The idea for this volume emerged during a meeting of the Psychometric Society in M- terey, CA. At that meeting, friends and colleagues discussed news about the impending retirement of Dr. Jurgen ] Rost, an important innovator and m- tor in this ?eld. To recognize Jurgen's ] contributions, we decided to produce a collection of research on extending the Rasch model as well as embedding the...