3.3. Video creation influencing factors on the health education effect
These experiments, which were designed to verify the influence of clothing, the progress bar, and BGM on the video science popularization effect, all adopted a mixed design, and each experiment included an intrasubject variable and an intersubject variable. Among them, the test time (pretest/posttest) was the intrasubject variable, and the intersubject variable was the clothing worn by the characters in the video (a doctor’s white coat or casual clothes), whether the video had a progress bar, and whether the video had BGM. Repeated measures ANOVA was used to test the interaction of these two factors. The simple effect test was used when the interaction was significant to show which factor influenced the effect of video science popularization.The simple effect analysis results are shown in Comparison of video-related knowledge understanding by participants after video watching.*Indicates significance at the In general, the clothing of the characters in the video and BGM had a significant impact on the cognitive improvement of the subjects’ popular science knowledge, and the progress bar had a significant edge effect.