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In observance of the 2024 holiday season, Sage offices will be closed Monday December 23rd through Wednesday January 1st. Normal operations, including shipping for orders placed during the closure, will resume on Thursday January 2nd. For technical support during this time, please visit our technical support page for assistance options. 

We wish you a wonderful holiday season. Thank you. 

Frank E. Ritter Pennsylvania State University, USA

Frank Ritter is a professor of Information Sciences and Technology and of Psychology at Penn State. He received his PhD from CMU and BSEE from UIUC. He teaches courses on human-computer interaction and cognitive science.  His research interests include models of learning and experiments to measure learning and retention. He co-wrote Running behavioral studies with human participants: A practical guide, which this report builds upon.  He also wrote Foundations for designing user centered systems: What psychology do system designers need to know with Baxter and Churchill, Building better interfaces for remote autonomous systems with Oury, and recently as a response to the pandemic, Skills to Obstruct Pandemics, with a team of ten co-authors, which is also available as a free online tutor, http://StopTheSpread.health .