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perceptionlab - Kings Kings D Carlino D Crooks D Hannold C...

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Kings Kings: D. Carlino, D. Crooks, D. Hannold, C. O’Brien Perception Lab October 30, 2007 Abstract This study investigated the Perception – specifically the “Popout Effect” (Ritter 2007) and how the use of multiple colors affect interface design – of four college students at Penn State University. The four participants, all male fraternity brothers, were tasked with identifying whether or not a target existed among distracters. Their performance was measured by reaction time, and removing any opportunity for guesswork ensured accuracy. Our results show that interface users consistently reacted faster when only one distracting color was used. Introduction Community soccer clubs around the country hire individuals to locate and assign referees to games. The referee assigner is given a list of games, and asked to find available referees. The assigner posts the list of games times and individual referees respond with their personal availability. This experiment is designed to be part of a larger study on how to improve the overall referee assignment process. More specifically, this experiment will show how the use of color can affect the functionality and usability of an interface. When designing an interface, it is very important to take into consideration the vision of the user. Factors such as color, spacing, and size of the objects and text are very important when it comes to enhancing the usability of an interface. “For the normally sighted person, vision is by far the 1
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Kings most powerful sense. Vision is thus likely to be very important for interacting with computers and computer supported systems” (Ritter 2007). Many interfaces today use color inappropriately and distract the user causing errors and longer reaction times. We want to see how much faster a user is able to find an object among distracters. We predict the results of this experiment will show that subjects’ reaction time is slower when two distracting colors are used, as opposed to just one. If the subjects are reacting faster to a single color, they’re reaction times should be consistently lower when only one color distracter is used.
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