Review of the cooperation of Professor B D Wright, University of Chicago and Professor G Rasch, University of Copenhagen.

This entire text, including the heading above, is contained in a document hand-written by Georg Rasch in the lobby of a hotel in Aalborg, Denmark, on June 18, 1972. A sample of the original, in Rasch's own hand-writing, is shown below.

In the Spring term 1960, GR, as a visiting professor at the Department of Education of the University of Chicago, gave a series of lectures based upon a monograph he, by then, was just giving the finishing touch. In this book, new methods in theory and practice of psychological meaning were developed, and later on they were carried over to Social Sciences at large until they ended up as a very general methodology covering both Social and Natural Sciences C a field which he, now having retired as a professor, is able to concentrate upon, thanks to an ample grant from the National Council of Social Sciences.

It goes without saying that such a development requires contacts in many different directions, and in this regard, the cooperation with Dr. B.W., professor in psychology and education, has given much inspiration to and been of great practical use for GR.

This work, which was initiated while he attended the teaching of GR in 1960, largely goes in the following three directions.

The methods of GR were developed at a time when the era of electronic computing has been barely heralded in this country [Denmark], the access to such facilities thus being very limited. In contributing to the development of the techniques of electronic computation for the models in question and in furthering their utilization, BW carried out a very great and most useful work, which of course can only be recognized by those who realize how forbidding the computational obstacles looked at that time. In continuation of this work, he cooperated with a number (11) of universities and other (8) big institutions in developing programmes designed for their special problems and adapting them to their particular electronic equipment.

Nextly, he has himself been active in applying the said methods in diverse fields within the area of psychological and educational testing, and also by inspiring others to do so, with the result that by now we are looking forward to a comprehensive evaluation of the applicability of the methods in the whole area.

However, this development was only possible due to his extensive teaching and giving speeches on the matter. In his own faculty he has given regular courses on the said methods since the spring term 1967. Talks to larger gatherings he has given some ten times since 1965, some of them in special sessions on GR's methods at periodical meetings of psychological and educational societies. Special mentions deserves his organization of two 5-day training courses in 1969 and 1970, sponsored by the governmental Department of Education, on which occasion some hundred psychologists and educationalists from all over the States and Canada were introduced to the elements of the theory and practice of GR's methods.

On the whole, since his first visit to Denmark in 1964 BW has practiced an almost unbelievable activity in this field, and results have certainly not been lacking. Thus already 6 dissertations have been produced C 2 of them under his direct guidance C and furthermore several leading institutions in educational and testing are now under his advice, turning to constructing their test batteries in accordance with consequences of GR's theories. In between, he himself has published, in part together with students of his, three significant papers on the topic. And at present he and GR are planning during one or two visits of longer duration (5-6 months) in 1973 and/or 1974 to produce a substantial paper on the comprehensive study indicated above. This plan may be seen as a climax of their cooperation during four short stayings over here (1964, '65, '67, and '70) and during a second period of GR as visiting professor at UC (1968/69).

GR


Review of cooperation between B D Wright and G Rasch. Rasch G. … Rasch Measurement Transactions 2:2 p.19


Review of cooperation between B D Wright and G Rasch. Rasch G. … Rasch Measurement Transactions, 1988, 2:2 p.19



Rasch Publications
Rasch Measurement Transactions (free, online) Rasch Measurement research papers (free, online) Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Applying the Rasch Model 2nd. Ed., Bond & Fox Best Test Design, Wright & Stone
Rating Scale Analysis, Wright & Masters Introduction to Rasch Measurement, E. Smith & R. Smith Introduction to Many-Facet Rasch Measurement, Thomas Eckes Invariant Measurement: Using Rasch Models in the Social, Behavioral, and Health Sciences, George Engelhard, Jr. Statistical Analyses for Language Testers, Rita Green
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar Journal of Applied Measurement Rasch models for measurement, David Andrich Constructing Measures, Mark Wilson Rasch Analysis in the Human Sciences, Boone, Stave, Yale

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