Item Response Analysis of the Continuous-Time Signals and Systems Concept Inventory

Kathleen E. Wage, John R. Buck, and Margret A. Hjalmarson

Item response theory was used to analyze version 3 of the continuous-time signals and systems concept inventory with a pool of 1276 students at 7 schools. The resulting estimates of question difficulty and student ability provide important data used to evaluate the design of the exam and prepare for the upcoming revision to version 4 of the inventory.

© 2009 IEEE. The article (PDF) appeared in Proceedings of the 5th IEEE Signal Processing Education Workshop, pp. 726-730, January 2009. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

This article is password-protected. Email John Buck (johnbuck [at] or Kathleen Wage (k.e.wage [at] to obtain the password.