A common view, particularly in the USA is that attending a secular university is harmful to the faith of Christian students. But, is this view actually supported by data? It seems not. The relevant data and its interpretation is discussed in this blog post.
A related question is: does studying science decrease the religious faith of undergraduates?
A common view is that the answer is yes. However, the data suggests otherwise. In contrast, studying the humanities can have a negative effect on religious faith. For US universities the relevant research paper is here.