| Credit |
6 points |
| Availability |
Semester 2 |
| Outcomes |
Students are able to (1) explain the basic principles of Rasch measurement theory in the social sciences; (2) understand the principles of traditional test theory in terms of Rasch measurement theory; (3) use a range of diagnostics in order to assess the quality of items in constructing assessment instruments of achievement, knowledge and attitude; and (4) apply software in analysing assessment data. |
| Content |
This unit begins with an introduction to the historical development of test theory and how modern test theory has superseded traditional test theory in many applications, especially in large-scale assessments. In particular, students learn how Rasch measurement incorporates, elaborates and better achieves the goals of traditional test theory.
The unit includes lectures on the formalisation and calculation of traditional reliability and reliability in Rasch models, the concept of validity in both traditional and modern test theory, the concepts of invariance and sufficiency in Rasch measurement, diagnosing the fit of responses to the Rasch model, and the Rasch model for dichotomous items and for items with ordered response categories. |
| Assessment |
This comprises nine assignments (70 per cent) and an open-book examination of three hours (30 per cent).
Supplementary assessment is not available in this unit. |
| Unit Co-ordinator(s) |
Winthrop Professor David Andrich and Research Assistant Professor Ida Marais |
| Location |
UWA (Crawley) |
| Mode |
online, WebCT |
| Note |
Students participate with unit co-ordinators and other students in an online discussion group. For the duration of the unit, students have the use of the RUMM2020 software, a very easy to use interactive program that analyses data according to the Rasch measurement model. |
| Texts | Enrolled students obtain (1) a set of lecture materials, which includes hardcopy of all of the lectures; (2) details of the assignments; (3) the necessary reading materials; and (4) the Study Guide setting out the steps to successfully complete the unit.
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- The availability of units in Semester 1, 2, etc. was correct at the time of going to press but may be subject to change.
- Assistance with study skills, including English language skills, is available free of charge from Student Services for all enrolled students (see http://www.studentservices.uwa.edu.au/ss/learning). Student Services location: Second Floor, South Wing, Guild Village; telephone: 6488 2423.
- Books and other materials wherever listed may be subject to change. Book lists relating to 'Preliminary Reading', 'Recommended Reading' and 'Textbooks' are, in most cases, available at the University Co-operative Bookshop (from early January) and appropriate administrative offices for students to consult. For first-year units the Bookshop will endeavour to make available photocopies of book lists for individual units. Books marked with an asterisk (*) are available in paperback.
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