Rasch Measurement as the
Definition of Scientific Agency

"Science is at its most productive when it defines new agencies that share their life with a scientific community. It is, thus, only the social scientists who put the cart before the horse by discussing the rigor and certainty of a fact, before having defined the new agencies [existing entities with lives of their own: sample- and scale-free variables] under examination. Such methodological rhetoric in anthropology [or in any other field] carries no more meaning than the construction of a highway, six lanes wide and several hundred meters long, located in the middle of nowhere. It would be robust and rigorous, yet where would it lead? What kind of traffic is it designed to carry? These are the questions that take precedence over the actual dimensions of the road."

"Once we have rejected the useless dreams of methodological rigor [disconnected from productive agency], where does anthropology stand if it tries to imitate not the purity of what it imagines in the natural sciences, but the real productivity of those disciplines - embodied in the new agencies they mobilize?"

"There is nothing especially cold or uninvolved in the production of science. On the contrary, experimental scientists are involved, close to their subject matter and passionate. What matters in the production of facts is not the Objective Gaze, but what properties might be maintained in the transformation of information through successive media [i.e., how well does the construct hold up across samples of persons and items?]."

"The more mediations, the better. This is as true for chemistry as for botany, psychology and ethnography. To believe that involvement, transformation, adulteration, reformatting and displacement weaken a Pure Science of Pure Objectivity is to have never seen a practicing scientist at work."

"The slogan, Science is politics pursued by other means, actually helps science because it insists on those other means necessary to build a society."

Latour, B. (1996, March). Not the question. AAA Anthropology Newsletter, 37(3), 1, 5.

Latour's sense of agency is fairly common in anthropology, and in social studies of science. For instance, standards are held to be both agents and products of agreement (Widmalm 1995; Wise 1995). When different labs working with different samples using different brands or configurations of instruments nonetheless converge on a common variable, the objective existence of the variable acts as an agent of standardization and agreement. When scientists and technicians get together to agree on the conventions of numerical units and data quality, the standard is the product of agreement. Latour's remark that, "the more mediations, the better," speaks to the robustness of phenomena that can withstand and even thrive on the transformations through successive media.

William P. Fisher, Jr.

Widmalm, S. (1995, May 12). On exactitude, a review of The Values of Precision, by M. Norton Wise. Science, 268, 905-6.

Wise, M. N. (Ed.). (1995). The values of precision. Princeton, NJ: Princeton University Press.

Rasch Measurement as the Definition of Scientific Agency. Fisher, W.P. Jr. … Rasch Measurement Transactions, 2000, 14:3 p.761




Rasch-Related Resources: Rasch Measurement YouTube Channel
Rasch Measurement Transactions & Rasch Measurement research papers - free An Introduction to the Rasch Model with Examples in R (eRm, etc.), Debelak, Strobl, Zeigenfuse Rasch Measurement Theory Analysis in R, Wind, Hua Applying the Rasch Model in Social Sciences Using R, Lamprianou El modelo métrico de Rasch: Fundamentación, implementación e interpretación de la medida en ciencias sociales (Spanish Edition), Manuel González-Montesinos M.
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Rasch Models for Measurement, David Andrich Constructing Measures, Mark Wilson Best Test Design - free, Wright & Stone
Rating Scale Analysis - free, Wright & Masters
Virtual Standard Setting: Setting Cut Scores, Charalambos Kollias Diseño de Mejores Pruebas - free, Spanish Best Test Design A Course in Rasch Measurement Theory, Andrich, Marais Rasch Models in Health, Christensen, Kreiner, Mesba Multivariate and Mixture Distribution Rasch Models, von Davier, Carstensen
Rasch Books and Publications: Winsteps and Facets
Applying the Rasch Model (Winsteps, Facets) 4th Ed., Bond, Yan, Heene Advances in Rasch Analyses in the Human Sciences (Winsteps, Facets) 1st Ed., Boone, Staver Advances in Applications of Rasch Measurement in Science Education, X. Liu & W. J. Boone Rasch Analysis in the Human Sciences (Winsteps) Boone, Staver, Yale Appliquer le modèle de Rasch: Défis et pistes de solution (Winsteps) E. Dionne, S. Béland
Introduction to Many-Facet Rasch Measurement (Facets), Thomas Eckes Rasch Models for Solving Measurement Problems (Facets), George Engelhard, Jr. & Jue Wang Statistical Analyses for Language Testers (Facets), Rita Green Invariant Measurement with Raters and Rating Scales: Rasch Models for Rater-Mediated Assessments (Facets), George Engelhard, Jr. & Stefanie Wind Aplicação do Modelo de Rasch (Português), de Bond, Trevor G., Fox, Christine M
Exploring Rating Scale Functioning for Survey Research (R, Facets), Stefanie Wind Rasch Measurement: Applications, Khine Winsteps Tutorials - free
Facets Tutorials - free
Many-Facet Rasch Measurement (Facets) - free, J.M. Linacre Fairness, Justice and Language Assessment (Winsteps, Facets), McNamara, Knoch, Fan

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