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Richard Hetherington


Publications by Richard Hetherington (bibliography)

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Trulock, Vivienne and Hetherington, Richard (2007): Assessing the Progress of Implementing Web Accessibility - An Irish Case Study. In: Cordeiro, Jos and Filipe, Joaquim (eds.) ICEIS 2008 - Proceedings of the Tenth International Conference on Enterprise Information Systems Volume HCI June 12-16, 2007, Barcelona, Spain. pp. 105-111.

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Hetherington, Richard, Crerar, Alison and Turner, Phil (2004): A Question of Realism. In: Proceedings of the 8th ERCIM Workshop on User Interfaces for All 2004. p. 68. http://www.springerlink.com/openurl.asp?genre=article&issn=0302-9743&volume=3196&spage=68

We present the results of an exploratory study investigating the feasibility of using multimedia software to teach life skills to adults with learning difficulties. As a precursor to determining whether the clients would benefit from the software, we needed to address the issue of realism in visual displays, to discover if photorealistic images of a familiar kitchen and utensils were essential, or if the clients would be able to abstract and apply information from generic cartoon-like representations. The level of realism was varied in two sets of tasks: object recognition exercises and problem-solving scenarios. Realistic versions of each task contained photorealistic images, and the problem-solving scenarios used images and speech of a support worker known to the participants to supply feedback and prompts. Unrealistic versions used clip art images and a cartoon-style character instead of the support worker. Contrary to expectations, measurements of errors and reaction times revealed the level of realism to have a negligible effect upon user performance in both sets of tasks. What has emerged is the overwhelming effect of individual differences on the design and evaluation of learning software.

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