As shopping from online retailers continues to increase, designers need to be aware of the strategies consumers are using to predict the ease-of-use of products based on appearance. The following study investigates the influence of task type (stimulus-response compatibility task, target-acquisition task, perceptual-search task) on these strategies. The results suggest that for abstract tasks (motor and search), participants are relying on elements in or interactions with the actual stimulus such as the predicted time to complete the task and the number of items in the stimulus. However for tasks that are more concrete (using a stove), participants rely on their past experiences and familiarity with the task to predict task difficulty.
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