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During online hotel booking, travelers are exposed to numerous hotel options, possibly making them feel overwhelmed with choices. Based on an online hotel booking scenario, two 2 × 2 factorial design experiments (Study one: 2 choice sizes × 2 amount of information; Study two: 2 choice sizes × 2 presentation of information), each with a sample of 242 participants, have been conducted to test the effect of choice size on perceived overload. The results find the choice overload effects and the associated internal mechanism, as well as the moderating effects of amount of information and presentation of information.
Guo et al. (Sun,) studied this question.