These are the three article that you need to read in order to answer the screenshort. https://jnd.org/simplicity_is_not_the_answer/
https://pdfs.semanticscholar.org/c824/bc2043d636953d1ab43d56e5c9929d6e1c67.pdf
http://ict.usc.edu/pubs/Virtual%20Rapport%202.0.pdf