A dataset about the evaluation of the web accessibility of videos published on YouTube by worldwide top-ranking universities

The objective of this study is to evaluate the accessibility of the videos published on YouTube by the best universities in the world, based on compliance with the Web Content Accessibility Guidelines (WCAG) 2.1 of the World Wide Web Consortium. We have carried out a manual evaluation of 91,421 videos, which are all published on YouTube by 113 universities taken from the Shanghai Ranking. Currently, there are no automatic tools that allow evaluating all the accessibility requirements; therefore, in this study we have had to manually evaluate the 91,421 videos published by a sample of 113 universities selected from the best universities in the world. In this research, we have proposed four hypotheses as a starting point: - Hypothesis 1 (H1): The number of videos published on the website of the best universities in the world does not have a normal distribution. - Hypothesis 2 (H2): The distribution of videos with captions varies according to the region of the world where the universities are located. - Hypothesis 3 (H3): The distribution of videos with captions have significant differences according to the ranking in which the universities are located. - Hypothesis 4 (H4): Shanghai Ranking is a good indicator of the level of accessibility of the videos published by the universities considered as the best worldwide.