Rasch Down Under - Kidmaps

During 1989 Rasch analysis was applied to an entire state school system in Australia for the first time. The government of Australia's largest state, New South Wales, contracted the Australian Council for Educational Research (ACER) to test the Numeracy and Literacy of all children in Year 6 (the final year of elementary schooling in Australia). Test results were required for 56,000 students.

A team led by Dr. Jan Lokan, consulted with the Education Department Curriculum Consultants in Sidney, and specifications for the tests were established. These were:

Numeracy

To consist of equal numbers of questions on Number (addition, subtraction, division, multiplication, common fractions, per cents, and decimals), Space (two-, three-dimensional space, nets of solids, and co-ordinates), and Measurement (money, mass, length, time, temperature, area, and volume).

Literacy

To consist of Language questions (punctuation, spelling), and Grammar, and Reading (comprehension).

A further specification was that, since the tests were to be machine- scored and the children to be tested had no prior experience in formal test situations, some efforts were to be made to reduce the numbers of multiple-choice items. The ingenuity of the item writers was aroused by this last specification, and some innovative forms of response resulted. (See sample items in Figure 1.) Machine-scoring of these alternative response methods was made possible through special programming of optical-scanning equipment.

Trial forms were analyzed using BICAL and ITANAL (an ACER item analysis program). Items with poor fit were discarded. A final mapping of one hundred and fifty items was made, topic by topic, in logit difficulty order.

The final selection of items was made in consultation with Education Department personnel. The final test form contained 43 Numeracy items and 43 Literacy items. In both areas, the question contexts were derived from accompanying stimulus material - a children's magazine for Literacy and a mail order catalogue for Numeracy. The tests were administered in August 1989.

Items were examined for their cognitive requirements. To provide reports for parents, Skill Bands were developed based on those cognitive requirements. The Skill Band Descriptors were the basis for all of the 170,000 reports generated. Parents and teachers were supplied with written descriptions of what each child was "typically able to do". (See sample "Kidmap" report form in Figure 2.) The Education Department was furnished with conventional statistical information as well (state and regional means, and means and standard deviations for sub-populations of girls, boys, Aboriginal, and English-as-a-second-language students).

The reaction of the media and parents to these individualized reports was very positive - probably because children were no longer given "marks" or "pass or fail", but instead were being told exactly what sort of Literacy and Numeracy skills they had acquired.

The use of the Skill Band descriptors to give a criterion-based, non- numerical description of children's strengths was appreciated more often and more favorably than almost any other aspect of the project. In addition to the written reports, teachers received two "Kidmaps" for each student.

The Education Department is favorably impressed with the type of reports generated by Rasch analysis. It is expected that future statewide testing in New South and other parts of Australia will use Rasch methods.

The State Government has been able to use the results of the testing program to assess the resources needed by schools and has announced that efforts will be made to provide schools which the program has revealed as in need with extra resources.

This year (1990) Year 6 will again be tested (on a new test) with similar analyses and reporting formats for all 50,000 students. Work is continuing on the reporting formats, as these are seen to be of great importance for the public "face" of Rasch analysis. Further report formats are currently being developed for use with other tests and in ways that they can be generated by PC for use with item banks.

Figure 1. Sample Innovative Items

Figure 2. Sample KIDMAP

Figure 3. Skill Band Definition

Figure 4. Sample Diagnostic KIDMAP

Rasch Down Under - Kidmaps, B Doig … Rasch Measurement Transactions, 1990, 4:1 p.96-100

Rasch Books and Publications
Invariant Measurement: Using Rasch Models in the Social, Behavioral, and Health Sciences, 2nd Edn. George Engelhard, Jr. & Jue Wang	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
Introduction to Many-Facet Rasch Measurement (Facets), Thomas Eckes	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	Appliquer le modèle de Rasch: Défis et pistes de solution (Winsteps) E. Dionne, S. Béland
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
Other 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

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