Materials
In order to assess ambiguous reversal, participants viewed 10 different optical illusions in the form of images. The questionnaire following each illusion asked the participants to indicate what they saw first and second in each image and how easily they were able to see the second image on a scale of 1 to 5 with 1 being “never saw anything” and 5 being “very easy.” The sum of the scores from each illusion constituted “overall ease”; the lowest score possible was 10 and the highest score possible was 50. The participants answered two questions indicating how artistically creative they believe they are and how much …show more content…
They read and signed informed consent forms (see Appendix A for the informed consent). Then the participants viewed 10 optical illusions via PowerPoint (see Appendix B for the images). After each image, the participants answered the questions that assessed ambiguous reversal (see Appendix C for the ambiguous reversal questionnaire). The activity was timed, Participants had 10 seconds to view the image and 15 seconds to answer the questions. After completing this for all 10 illusions, the participants answered the two item questionnaire assessing creativity and then reported their demographics (see Appendix D for the creativity questionnaire and the demographics). When the participants were finished they handed in their materials, were thanked for their participation and