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Huisman, G. and Van Hout, M. and van Dijk, E.M.A.G. and van der Geest, T.M. and Heylen, D.K.J. (2013) LEMtool - Measuring emotions in visual interfaces. In: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI 2013), 27 April - 2 May 2013, Paris, France. pp. 351-360. ACM. ISBN 978-1-4503-1899-0
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Official URL: http://dx.doi.org/10.1145/2470654.2470706
In this paper the development process and validation of the LEMtool (Layered Emotion Measurement tool) are described. The LEMtool consists of eight images that display a cartoon figure expressing four positive and four negative emotions using facial expressions and body postures. The instrument can be used during interaction with a visual interface, such as a website, and allows participants to select elements of the interface that elicit a certain emotion. The images of the cartoon figure were submitted to a validation study, in which participants rated the recognizability of the images as specific emotions. All images were found to be recognizable above chance level. In another study, the LEMtool was used to assess visual appeal judgements of a number of web pages. The LEMtool ratings were supported by visual appeal ratings of web pages both for very brief (50 milliseconds) and for long (free-viewing) stimulus exposures. Furthermore, the instrument provided insight into the elements of the web pages that elicited the emotional responses.
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