Item Response Theory
Introduction
A livestream seminar presented by Statistical Horizons, 3-6 Jun 2025, Taught by Matthew Diemer
INTEREST CATEGORY: MARKETING RESEARCH
POSTING TYPE: Events
Posted by: ELMAR Moderator
Item Response Theory – Online Course
A 4-Day Livestream Seminar Taught by Matthew Diemer
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 methods illuminate 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.