Recent technological breakthroughs have cultivated a Web3D movement. It is safe to say we will see more and more stereo 3D images on websites. This research investigates how stereo 3D can be employed on websites to influence user learning. A set of theory-driven hypotheses were developed to compare websites with embedded stereo 3D and websites with either static 2D images or virtual realities in terms of user comprehension, user control in learning, and user adoption of the website. Controlled experiments were conducted to test the hypotheses. The results show that stereo 3D can reduce learning effort and induce positive user attitude. At the same time, it can also reduce users’ perceived control. While answering some fundamental research questions, this research also reveals that more investigation is needed regarding the use of stereo 3D on websites.



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