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Item type:Publication, The effect of icon entropy, icon concreteness and time on human selection accuracy(2019-02-01)Satcharoen, KleddaoThis paper reports on an experimental study that included engineering faculty undergraduates (n = 400) to measure the effect of icon entropy and icon concreteness on selection accuracy within time constraint conditions (15 seconds, 10 seconds, and 5 seconds). The research was undertaken as an exploratory tool to study the potential effects and interactions of entropy, which has been poorly studied as a possible factor in icon selection outcomes despite existing knowledge that entropy is perceivable by humans and can influence their behaviors. This May be particularly important in small-screen computing where icon size and resolution May pose a challenge for perception, and where entropy May interfere further by introducing high salience. Results showed that conditions of high entropy resulted in lower categorization accuracy for both high and low concreteness icons. However, these differences were only significant under the strictest time constraint (5 seconds). - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Icon concreteness effect on selection speed and accuracy(2018-04-23)Satcharoen, KleddaoThe purpose of this research is studying the interaction of icon concreteness and response time in a sample of experienced users of a popular real-world software program (n = 100 users). The research used an experimental approach, with three trials of six icons each (three abstract and three concrete icons), for a total of 1800 trials. The results showed that reaction times were similar for concrete and abstract icons. However, response accuracy was different. While accuracy of fast reactions (3 seconds or less) was similar, a chi-square analysis showed statistically significant differences in accuracy for the three longer reaction times (4-6 seconds, 7-9 seconds, and 9+ seconds) (p < 0.05). The results imply that even for experienced users, icon concreteness makes a difference in semantic distance and cognitive processing load, resulting in differences in response accuracy. Thus, even programs designed for experienced users should use more concrete icons where possible. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The influence of colour on intention to adopt food delivery service mobile app(2017-11-24)Satcharoen, KleddaoThis research investigates the connections between colour usage, food appetite, and intention to adopt a food delivery services mobile app. Although research has established a connection between colour perception and appetite, hunger, and food choice, the research was designed to explore the importance of colour in app design and the link between appetite for food and adoption of the app. The research used a quantitative, scenario-based online questionnaire distributed to Thai mobile Internet users (n = 398). Users were asked about their perception of the colours and appetite, followed by a mobile app adoption scenario. Results showed that Orange, Red, Yellow, and Blue were associated with food appetite, while Orange, Red, and Blue were associated with adoption intention. Food appetite and adoption intention were positively and strongly associated. The implication of this research is that app designers need to consider the psychological implications of their aesthetic design.