| Linking and Equating Terminology: Raw Score and Rasch | ||
|---|---|---|
| Term | Linn & Mislevy (Classical Test Theory) meaning | Rasch meaning |
| Linking | general term for making the results of different tests comparable | enabling the data to be analyzed together in one analysis (if desired) to construct one overall set of measures |
| Equating | correspondence of raw scores between tests | putting the measures in the same frame of reference |
| Calibration | putting the scores in the same frame of reference | constructing item measures in the internal frame of reference |
| Projection | scores on one test weakly predict scores on another test | (a height-weight situation) |
| Moderation | equivalences based on matching up sample statistics | (Fahrenheit-Celsius equating) |
| Anchoring (fixing) | - | measures obtained from one analysis (or construct theory) imposed on another to place it in the same frame of reference. |
| Local origin | zero score or sample mean | reference location from which to measure along the latent variable |
| Linn, R. L. (1993). Linking results of distinct assessments. Applied Measurement in Education, 6, 83-102. Mislevy, R. J. (1992). Linking educational assessments: Concepts, issues, and prospects. Princeton, NJ: Educational Testing Service. | ||
Linking Terminology: Raw Score and Rasch, … Rasch Measurement Transactions, 2007, 20:4 p. 1076
| 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 3rd. 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 |
| in Spanish: | Análisis de Rasch para todos, Agustín Tristán | Mediciones, Posicionamientos y Diagnósticos Competitivos, Juan Ramón Oreja Rodríguez | ||
| Forum | Rasch Measurement Forum to discuss any Rasch-related topic |
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