Rasch Measurement – Further Topics
This course will teach you Rasch theory and its application in the Winsteps software begun in Practical Rasch Measurement-Core Topics. This course introduces exciting new topics and delves into earlier topics more deeply.
Overview
This course builds on previous knowledge of Rasch theory and the Winsteps software program. It focuses on teaching students to not only analyze data, but present it in a clear and powerful way. Students will learn how to screen data and make judicious data selection and editing decisions. Previous experience using Winsteps and Excel is recommended.
- Intermediate, Advanced
- 4 Weeks
- Expert Instructor
- Tuiton-Back Guarantee
- 100% Online
- TA Support
Learning Outcomes
At the conclusion of this course students will be able to import data from SPSS, SAS, Stata and Excel, install and operate Winsteps software, and analyze dichotomous and polytomous data. They will investigate test functioning and test equating with a goal of successfully analyzing data and communicating their findings to decision makers.
- Deal with missing data
- Calculate correlations and local fit-statistics
- Estimate polytomous models
- Deal with differential item functioning
- Perform test equating
Who Should Take This Course
Survey researchers, social scientists who use surveys or questionnaires in their work, education assessment analysts and managers.
Our Instructors
Dr. Everett V. Smith, Jr
Everett V. Smith Jr. obtained his Ph.D. in Educational Psychology with a specialization inMeasurement and Evaluation from the University of Connecticut in 1995. He specializes inpsychometrics, specifically Rasch measurement. His research interests and expertise includetest and rating scale design and analysis for the measurement of latent constructs, testing modelrobustness, and, in general, applications of Rasch measurement in the social, behavioral, health,rehabilitation, and medical sciences for both criterion and norm-referenced assessments. Amongthese applications include studies of dimensionality, DIF, cross-cultural equivalence, equating,item banking, rating scale optimization, and standard setting.
Course Syllabus
Week 1
Analysis of Dichotomous Data
- Winsteps software installation and operation
- Analysis with missing data
- Correlations and local fit-statistics
- Item-person maps
- Estimating measures from dichotomous data
Week 2
Analysis of Polytomous Data
- Importing data from SPSS, SAS, Stata, Excel and more
- Rescoring data
- Polytomous models
- Polytomous estimation
- Average measures and category thresholds
Week 3
Investigating Test Functioning
- Subtotals
- Differential Item Functioning
- Dimensionality
Week 4
Test Equating
- Test equating: separate and concurrent
- Prettifying output
Class Dates
2025
Instructors: Dr. Everett V. Smith, Jr
Prerequisites
Rasch Measurement – Core Topics
- Skill: Intermediate, Advanced
- Credit Options: CEU
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Additional Information
Time Requirements
About 15 hours per week, at times of your choosing.
Homework
Homework in this course consists of short answer questions to test concepts.
In addition to assigned readings, this course also has supplemental readings available online, and an end of course data modeling project.
Course Text
All necessary study material is provided online by the instructor. Helpful additional study material can be found in the book Introduction to Rasch Measurement (Smith & Smith, Eds., 2004, JAM Press). The text can be ordered directly from the publisher, JAM Press.
Software
The course will use a time-limited version of Winsteps software available when the course starts. Microsoft Excel is used extensively. Note: Winsteps does not run on native Macintosh OS; you will need to be running Windows.
Supplemental Information
Literacy, Accessibility, and Dyslexia
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