Perhaps your students read slow or very inefficiently. Since their reading skills are poor and they value their time very highly they can easily budget their ti

Perhaps your students read slow or very inefficiently. Since their reading skills are poor and they value their time very highly they can easily budget their time against a video with a defined length vs reading a text that could take more time due to said reading skills. Also, with features like adjusting playback and skipping over parts they understand faster without having to worry (ie: they can't just skip a paragraph or page of text because something might be mixed in with the stuff they understand).