Practical Rasch Measurement - Core Topics

Brief Description:

Rasch analysis constructs linear measures from scored observations, such as responses to multiple-choice questions, Likert scales and quality-of-life assessments. This course covers the practical aspects of data setup, analysis, output interpretation, fit analysis, differential item functioning, dimensionality and reporting.

Instructor(s):
Level: Intermediate

Who Should Take This Course:

Survey researchers, social scientists who use surveys or questionnaires in their work, education assessment analysts and managers.

Dates:
To be scheduled.
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Registration:
Please read the syllabus tab, noting the prerequisites, text and software requirements.

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Practical Rasch Measurement - Core Topics

Aim of Course:

Rasch analysis constructs linear measures from scored observations, such as responses to multiple-choice questions, Likert scales and quality-of-life assessments. This course covers the practical aspects of data setup, analysis, output interpretation, fit analysis, differential item functioning, dimensionality and reporting. Simple test linking and equating designs are addressed. Supporting theory is presented conceptually. Participants are encouraged to analyze their own datasets in parallel to the course datasets.

This course is a core requirement or elective in the following Program(s) in Advanced Statistical Studies (PASS):

• Statistics for Social Sciences

Prerequisite(s):

Participants should have a good grasp of (and comfort with) the material covered in Introduction to Statistics for Beginners, Introduction to Statistics 1: Inference for a Single Variable, and Introduction to Statistics 2: Working with Bivariate Data. This includes the normal distribution, t-tests and significance (based on group means and standard errors), and the chi-square distribution. An understanding of logarithms is also required, as is the ability to manipulate an Excel spreadsheet.

If you are not familiar with the basics of educational measurement and assessment, or would like a refresher, please consider taking Introduction to Assessment/Measurement in Education.

Course Program:

SESSION 1: Basic concepts and operations

• Winsteps software installation and operation
• Basic measurement and Rasch concepts
• Simple dichotomous analysis
• Constructing data files

SESSION 2: Fit analysis and Measurement Models

• Rasch-Andrich Rating Scale Model
• Quality-control fit statistics
• Scalograms

SESSION 3: Rating scales, reliability and anchoring

• Partial Credit Model
• Category Description
• Standard errors and Reliability
• Anchoring

SESSION 4: DIF, dimensionality and equating

• Differential Test Functioning
• Differential Item Functioning
• Investigating Dimensionality

Organization of the Course:

This course takes place over the internet, at statistics.com for 4 weeks. During each course week, you participate at times of your own choosing - there are no set times when you must be online. Course participants will be given access to a private discussion board. In class discussions led by the instructor, you can post questions, seek clarification, and interact with your fellow students and the instructor.

The course typically requires 15 hours per week. At the beginning of each week, you receive the relevant material, in addition to answers to exercises from the previous session. During the week, you are expected to go over the course materials, work through exercises, and submit answers. Discussion among participants is encouraged. The instructor will provide answers and comments, and you will receive individual feedback on your homework answers.

Credit:
Students come to The Institute for a variety of reasons:

1. You may be interested only in learning the material presented, and not be concerned with grades or a record of completion.
2. You may be enrolled in PASS (Program in Advanced Statistical Studies) that requires demonstration of proficiency in the subject, in which case your work will be assessed for a grade.
3. You may require a "Record of Course Completion," along with professional development credit in the form of Continuing Education Units (CEU's).

As you begin the class, you will be asked to specify your category.

This course offers continuing education units (CEU's). For those successfully completing the course (generally this means marks of 50% or better on the homework), 5.0 CEU's and a record of course completion will be issued by Statistics.com, upon request.

Course Text:

All necessary study material is provided online by the instructor. Helpful additional study material can be found in the book Applying the Rasch Model, 2nd edition (Bond & Fox, 2007, Taylor & Francis/Lawrence Erlbaum Associates). The text can be ordered directly from the publisher, Taylor & Francis, by clicking here.

Software:

The course will use a time-limited version of Winsteps software available when the course starts. Microsoft Excel is used extensively.

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Practical Rasch Measurement - Core Topics

Instructor(s):
Dates:
To be scheduled.
Course Fee: $499
Academic Discounted Rate: $429

Before registering, please read the syllabus tab, noting the prerequisites, text and software requirements. When you click the register button, you will be taken to our secure transaction page.

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