Screening for Neuropsychiatrie Dysfunction: A Latent Structure Analysis of Two Questionnaires

Abstract

Summing up information from interview or questionnaire data into a single number, an index, is not uncommon in social medical research, but the conceptual and mathematical background for this is too often neglected. The so-called “Rasch models” specify circumstances where a single index can be used. The necessary computer programs for doing this are now generally available (10, II). Two often used questionnaires concerning neurotoxicity due to solvent exposure are tested using a Rasch model. None of the questionnaires were found to be in agreement with the necessary requirements for the model and no single number describes the respondent's degree of neuropsychiatrie dysfunction. Much more work is needed before a suitable screening questionnaire is available.

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References

1. Bech, P. : Rating for affective disorders: Their validity and consistency. Acta Psychiatr Scand 64: 295, 1981.

2. Rasch, G. : Objektivitet i samfundsvidenskaberne, et metodeproblem. Nationaløkonomisk Tidsskr 110: 161, 1972.

3. Rasch, G. : Studies in mathematical psychology. I. Probabilistic models for some intelligence and attainment tests. Danmarks Pasdagogiske Institut, 1960.

4. Rasch, G. : On specific objectivity. An attempt at formalizing the request for generality and validity of scientific statements. Danish Yearbook of Philosophy, København, 1977.

5. Rosenberg, R. , Allerup, P. , & Bech, P. : Målinger af kliniske observationer. Ugeskr Læg 141: 3232, 1979.

6. Sabroe, S. & Olsen, J. : Health complaints and work conditions among Iacquerers in the Danish furniture industry. Scand J Soc Med 7: 97, 1979.

7. Rasmussen, K. , Bjerre, A. , Petersen, R. & Sabroe, S. : Helbredsgener ved arbejde med klorerede opløsningsmidler i elektronikindustrien. Ugeskr Læg 1983 (in press).

8. Hogstedt, C. , Hane, M. , & Axelson, O. : Diagnostic and health care aspects of workers exposed to solvents, pp. 249–258. Year Book Medical Publ., Chicago, 1980.

9. Andersen, E. B.: Discrete statistical models with social science applications. København, 1980.

10.

10. Allerup, P. & Sorber, G. : The Rasch model for questionnaires. Danmarks Pædagogiske Institut, København, 1977.

11.

11. Weinreich, M. & Holmsgaard, S.: User's guide to the SAS procedure raschit. København, 1982.

12.

12. McNeil, B. J. , Keeler, E. , & Adelstein, S. J. : Primer on certain elements and medical decision making. The New England Journal of Medicine 293: 211, 1975.