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Scott Douglass

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Publications by Scott Douglass (bibliography)

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» 2006 «

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Fu, Wai-Tat, Bothell, Daniel, Douglass, Scott, Haimson, Craig, Sohn, Myeong-Ho and Anderson, John (2006): Toward a real-time model-based training system. In Interacting with Computers, 18 (6) pp. 1215-1241

This article describes the development of a real-time model-based training system that provides adaptive '"over-the-shoulder'" (OTS) instructions to trainees as they learn to perform an Anti-Air Warfare Coordinator (AAWC) task. The long-term goal is to develop a system that will provide real-time instructional materials based on learners' actions, so that eventually the initial set of instructions on a task can be strengthened, complemented, or overridden at different stages of training. The training system is based on the ACT-R architecture, which serves as the theoretical background for the cognitive model that monitors the learning process of the trainee. An experiment was designed to study the impact of OTS instructions on learning. Results showed that while OTS instructions facilitated short-term learning, (a) they took time away from the processing of current information, (b) their effects tended to decay rapidly in initial stages of training, and (c) their effects on training diminished when the OTS instructions were proceduralized in later stages of training. A cognitive model that learned from both the upfront and OTS instructions was created and provided good fits to the learning and performance data collected from human participants. Our results suggest that to fully capture the symbiotic performance between humans and intelligent training systems, it is important to closely monitor the learning process of the trainee so that instructional interventions can be delivered effectively at different stages of training. We proposed that such a flexible system can be developed based on an adaptive cognitive model that provides real-time predictions on learning and performance.

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» 1999 «

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Byrne, Michael D., Anderson, John R., Douglass, Scott and Matessa, Michael (1999): Eye Tracking the Visual Search of Click-Down Menus. In: Altom, Mark W. and Williams, Marian G. (eds.) Proceedings of the ACM CHI 99 Human Factors in Computing Systems Conference May 15-20, 1999, Pittsburgh, Pennsylvania. pp. 402-409. Available online

Click-down (or pull-down) menus have long been a key component of graphical user interfaces, yet we know surprisingly little about how users actually interact with such menus. Nilsen's [8] study on menu selection has led to the development of a number of models of how users perform the task [6, 21. However, the validity of these models has not been empirically assessed with respect to eye movements (though [1] presents some interesting data that bear on these models). The present study is an attempt to provide data that can help refine our understanding of how users interact with such menus.

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Changes to this page (author)

24 Feb 2010: Enabled abstracts to be shown on Scott Douglass's author page.
27 Jun 2007: Author was edited
28 Apr 2003: Added the author to the bibliography

Publication statistics

Publication period:1999-2006
Publication count:2
Number of co-authors:8



Productive colleagues

Scott Douglass's 3 most productive colleagues in number of publications:

John R. Anderson:28
Michael D. Byrne:17
Wai-Tat Fu:11


Collaboration count

Number of publications with 3 favourite co-authors:

Craig Haimson:1
Myeong-Ho Sohn:1
John Anderson:1

 

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Mar 12

People shouldn’t have to read a manual to open a door, even if it is only one word long (push/pull).

-- Don Norman

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