Biannual; schools decide when to participate.
Mode of Collection:
Paper and web-based surveys.
Schools may survey their students about one or more topics such as: (1) alcohol, tobacco and other drug use; (2) sexual health; (3) weight, nutrition and exercise; (4) mental health; (5) personal safety and violence.
Students in self-selected colleges and universities in the U.S.
Response Rates and Sample Size:
Response rates vary: In the 2008 fall cycle, 40 institutions participated; 26,685 students were sampled. In the spring 2009 cycle, 117 institutions participated; 87,105 students were sampled.
Because the schools included in the NCHA are self-selecting, these data may not be generalizable to all schools (colleges and universities) and college students in the U.S.