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Item Response Theory - Online Course

A 3-Day Livestream Seminar Taught by

Matthew Diemer
Course Dates: Ask about upcoming dates
Schedule: All sessions are held live via Zoom. All times are ET (New York time).

10:00am-12:30pm (convert to your local time)

Item Response Theory (IRT) methods are best known for their use in large-scale achievement testing, such as (in the U.S.) the SAT and GRE. However, IRT methods have unique—and overlooked—advantages for improving measurement in the social sciences, psychology, education, medicine, business, marketing, and other fields. For example, IRT illuminates how precise a measure is across people with low, medium, or high levels of the underlying construct of interest. (In contrast, factor analytic approaches assume an item, subscale, or measure is equally precise for everyone.) Further, IRT is unique in allowing researchers to identify redundant and/or low-information items, making it possible to streamline longer scales to yield more efficient short-form measures.

This workshop provides a hands-on introduction to IRT. It minimizes notation and jargon and instead emphasizes conceptual understanding and application, with a particular emphasis on figures—the “visual language” of IRT. The Graded Response Model, which is designed for analyses of Likert-type items (e.g., strongly disagree to strongly agree), will be the primary focus.

Each day will be roughly divided between lecture and guided analytic practice aimed at learning to apply course concepts. Participants are encouraged to bring their own data to use during the ‘hands on’ portion of each session. Alternatively, participants will be provided with a dataset and analytic problems to work on.

Starting December 7, we are offering this seminar as a 3-day synchronous*, livestream workshop held via the free video-conferencing software Zoom. Each day will consist of two lecture sessions which include hands-on exercises, separated by a 1-hour break. You are encouraged to join the lecture live, but will have the opportunity to view the recorded session later in the day if you are unable to attend at the scheduled time.

*We understand that finding time to participate in livestream courses can be difficult. If you prefer, you may take all or part of the course asynchronously. The video recordings will be made available within 24 hours of each session and will be accessible for four weeks after the seminar, meaning that you will get all of the class content and discussions even if you cannot participate synchronously.

Closed captioning is available for all live and recorded sessions. Live captions can be translated to a variety of languages including Spanish, Korean, and Italian. For more information, click here.


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