I am looking at a particular research group for graduate studies. The research group is in STEM.
From talking to the professors, they have repeatedly told me that a master degree merely takes two years. First year you take courses, second year you complete your thesis. Sounds about right.
But when I look at the CVs of the students, a lot of the students seems to be graduating way past this two year limit. One student was doing his masters from 2011 all the way till 2014. Another recent student is still completing her master that was started from 2013. I have only sampled a few students, they might not be representative of the entire research group.
Still the question remains, what could be the reason that a master student is taking so much longer to complete his degree given that the research group has explicitly told everyone that it only takes two years.