# 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.

• 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.

## 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

### 2024

06/21/2024 to 07/19/2024
Instructors: Dr. Everett V. Smith, Jr

### 2025

06/20/2025 to 07/25/2025
Instructors: Dr. Everett V. Smith, Jr

## Prerequisites

### Rasch Measurement – Core Topics

This course will teach you how Rasch analysis constructs linear measures from scored observations. You will learn the practical aspects of data setup, analysis, output interpretation, fit analysis, differential item functioning, dimensionality and reporting.
• Credit Options: CEU

## Register For This Course

Rasch Measurement – Further Topics

#### 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.

#### Literacy, Accessibility, and Dyslexia

At Statistics.com, we aim to provide a learning environment suitable for everyone. To help you get the most out of your learning experience, we have researched and tested several assistance tools. For students with dyslexia, colorblindness, or reading difficulties, we recommend the following web browser add-ons and extensions:

Chrome

Firefox

Safari

• Navidys (for colorblindness, dyslexia, and reading difficulties)
• HelperBird for Safari (for colorblindness, dyslexia, and reading difficulties)

## Register For This Course

Rasch Measurement – Further Topics