Many-Facet Rasch Measurement

Many-Facet Rasch Measurement

taught by Everett Smith

Aim of Course:

This online course, "Many-Facet Rasch Measurement" will cover the analysis and interpretation of judge-intermediated ratings, like essay grading, Olympic ice-skating, therapist ratings of patient behavior, etc. Specifically, you will learn how to assess whether raters function (as desired) interchangeably, or whether they differ systematically in ways that can impair the overall rating system.

This course may be taken individually (one-off) or as part of a certificate program.
Course Program:

WEEK 1: Software Operation and Basic Concepts

  • Software installation and operation
  • Facets, elements, persons, items, raters
  • Data entry methods, including using Excel
  • Rasch measurement concepts
  • Dichotomous and polytomous models
  • Rasch measures and measurement rulers

WEEK 2: Fit Analysis and Measurement Models

  • A two-facet dichotomous analysis
  • Observations, measures, expectations and residuals
  • Mean-square and standardized fit statistics
  • Outfit and Infit statistics
  • A three-facet polytomous analysis
  • Reliability, separation and inter-rater reliability
  • Rating scale structures

WEEK 3: Estimation and Interactions

  • A four-facet polytomous analysis
  • Missing data
  • Bias/interaction analysis
  • Graphing interactions with Excel
  • Recoding the data
  • Interactions with dummy facets

WEEK 4: Anchoring

  • Subset detection and remedies
  • Anchoring, linking and equating
  • Judging plan and Generalizability Theory
  • Prettifying output for communication

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.

Many-Facet Rasch Measurement

Who Should Take This Course:
Researchers and analysts in education, psychology, medicine and other fields who deal with data that include ratings from human judges.
Level:
Advanced-intermediate
Prerequisite:

Ability to manipulate an Excel spreadsheet is advantageous.

You should be familiar with introductory statistics.  Try these self tests to check your knowledge.
Organization of the Course:

This course takes place online at the Institute 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.

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 at the end of the week, you will receive individual feedback on your homework answers.

Time Requirement:
About 15 hours per week, at times of  your choosing.

Options for Credit and Recognition:
Students come to the Institute for a variety of reasons. As you begin the course, you will be asked to specify your category:
  1. No credit - You may be interested only in learning the material presented, and not be concerned with grades or a record of completion.
  2. Certificate - You may be enrolled in PASS (Programs in Analytics and Statistical Studies) that requires demonstration of proficiency in the subject, in which case your work will be assessed for a grade.
  3. CEUs and/or proof of completion - You may require a "Record of Course Completion," along with professional development credit in the form of Continuing Education Units (CEU's).  For those successfully completing the course,  CEU's and a record of course completion will be issued by The Institute, upon request.
  4. Other options - Statistics.com Specializations, INFORMS CAP recognition, and academic (college) credit are available for some Statistics.com courses
Specialization:
Specializations are an easy way for you to demonstrate mastery of a specific skill in statistics and analytics. This course is part of the Rasch & Item Response Theory Specialization which gives a deep dive into statistical methods for calibration and equating of test instruments.  Take any three of the four Statistics.com courses on this topic (this course, plus the courses listed to the right under "related courses," not including conferences).  For savings, use the promo code "rasch-specialization" and register for all three courses at once for  $1197 ($399 per course, not combinable with other tuition savings).  If you register for all four, you'll still receive the discounted rate.
Course Text:
Instructional material will be provided online by the instructor. A reference work is Many-Facet Rasch Measurement (MESA Press, 1994) from www.rasch.org/books.htm
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.
Instructor(s):

Dates:

August 11, 2017 to September 08, 2017 August 10, 2018 to September 07, 2018

Many-Facet Rasch Measurement

Instructor(s):

Dates:
August 11, 2017 to September 08, 2017 August 10, 2018 to September 07, 2018

Course Fee: $589

Do you meet course prerequisites? What about book & software? (Click here to learn more)

We have flexible policies to transfer to another course, or withdraw if necessary (modest fee applies)

Group rates: Click here to get information on group rates. 

First time student or academic? Click here for an introductory offer on select courses. Academic affiliation?  You may be eligible for a discount at checkout.

3 Rasch courses for $400 each:  Register for Practical Rasch: Core TopicsPractical Rasch Measurement: Further Topics, and Many Facet Rasch Measurement in the same transaction for $1200; use the promo code "Rasch."

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Add $50 service fee if you require a prior invoice, or if you need to submit a purchase order or voucher, pay by wire transfer or EFT, or refund and reprocess a prior payment. Please use this printed registration form, for these and other special orders.

Courses may fill up at any time and registrations are processed in the order in which they are received. Your registration will be confirmed for the first available course date, unless you specify otherwise.

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