The article “The Effectiveness of Virtual and Augmented Reality in Health Science and Medical Anatomy” (Anatom. Sc. Educ. 2017: 549–559) describes an experiment in which 59 health science students received an identical, electronic 10-minute lesson on skull anatomy (complete with 3D graphics models) through one of three devices: a virtual reality (VR) system, an augmented reality (AR) system, or a 3D-capable tablet. After the lesson, all students took a 20-question test on skull anatomy. The accompanying table summarizes the students’ exam scores.

Does the data suggest that there is a difference among the three lesson delivery methods with respect to true mean exam score? Use α = .05.

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Lesson delivery VR AR 3D Tablet n 20 17 22 Mean 12.9 12.5 13.3 SD 4.3 4.5 4.2