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Title:
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A NEW TEST FOR WEB PAGE EVALUATION |
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Author(s):
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Lari Kärkkäinen , Jari Laarni |
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ISBN:
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972-98947-1-X |
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Editors:
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Pedro Isaías and Nitya Karmakar |
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Year:
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2003 |
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Edition:
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2 |
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Keywords:
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Change blindness, attention, and usability . |
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Type:
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Poster/Demonstration |
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First Page:
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1255 |
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Last Page:
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1256 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Perception always requires attention, that is, attention must be directed to the object that is to be perceived. In this paper we introduce a new evaluation tool for measuring how well some features in a user interface capture users attention. The method is based on the psychological phenomenon of change blindness. In change blindness an image is first flashed up shortly, and then the same image is flashed up again with one change on it. This type of presentation of two flickering images causes that even large changes go unnoticed. It has been argued that change blindness is caused by limitations of conscious attention. The experiment consisted 9 web pages with three types of changes: deletion, size alteration, and colour alteration. The changes were made to three parts of a page: content, navigation bar, and graphical elements. Eighteen participants volunteered. Half of them were web professionals and half were regular home-users. The results showed that the test is sensitive to some features of web pages. Furthermore, there was an interaction between the location of a change and its type. |
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