Applying the Rasch Model: Fundamental Measurement in the Human Sciences

Applying the Rasch Model: Fundamental Measurement in the Human Sciences

Applying the Rasch Model: Fundamental Measurement in the Human Sciences

Applying the Rasch Model: Fundamental Measurement in the Human Sciences

Synopsis

Trevor Bond has worked with leading Rasch theoreticians for more than 15 years, advising developmentalists and teachers on how to conduct and interpret Rasch analyses of their own data. The goals of this authored volume are: *to present an accessible overview of the basic properties and principles of Rasch analysis, that does not require a sophisticated statistical background; *to demonstrate how Rasch analysis can be applied to generic problems encountered by psychologists and educators; and *to prepare readers for performing their own analyses and interpreting the results. This book is ideal for researchers in the human sciences interested in learning how to implement the Rasch model with their own data.

Excerpt

To insist on calling these other processes measurement adds nothing to their actual significance, but merely debases the coinage of verbal intercourse. Measurement is not a term with some mysterious inherent meaning, part of which may be overlooked by the physicists and may be in course of discovery by psychologists. It is merely a word conventionally employed to denote certain ideas. To use it to denote other ideas does not broaden its meaning but destroys it: we cease to know what is to be understood by the term when we encounter it; our pockets have been picked of a useful coin.

—Guild (1938)

No doubt we are not the first authors to end up writing a volume considerably different from the one we set out to write. in terms of the method adopted and the research examples used, the ideas for this book have been crystallizing slowly in the first author's mind for the past 5 years. the need for such a book became more and more obvious, when, at the end of each presentation made at some conference, yet another colleague would approach and ask for a 10-min summary of what all this Rasch modeling was about. Then each time a colleague or new student wanted to undertake research using the Rasch model, it usually involved reteaching, yet again, an introduction to Rasch methodology to another beginner. This book then was designed to be a simple solution to this frustration of the repetition, a textbook to introduce the “how” of Rasch measurement to those who already already had thought at least a little about the “why.”

Of course, actually writing the book is not quite as simple as developing a good plan for its structure and content. Moreover, without the active collaboration . . .

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