Article from a few weeks back in Science and Theology News about a survey of college and university students’ religious and spiritual beliefs.
According to a recently released national study, the majority of college students across America think about their religious and spiritual beliefs with similar contemplation. The University of California, Los Angeles’ Higher Education Research Institute surveyed about 100,000 freshmen at 236 colleges and universities last year and found that 80 percent were interested in spirituality. Seventy-nine percent said they believe in God.
The article is that it provides a link to a PDF file containing the survey questionnaire. So you can see exactly what type of questions were asked, rather than just the normal summary of results. Might be helpful if you were looking at doing something similar.