Use ODESI to download thousands of surveys from Statistics Canada's Data Liberation Initiative as well as historic and current public opinion polls from Gallup Canada and other polling companies.
Many data formats are available including SPSS, SAS, Stata and text.
Tutorials are available - https://tinyurl.com/huuz5b62
According to A Dictionary of Public Health Grey Literature is:
Unpublished papers and reports, academic dissertations, etc., that by common agreement are of sufficient quality to be reliable, verifiable, and acceptable sources of original observations for citation purposes.
(2007). gray literature. In Last, J.(Ed.), A Dictionary of Public Health. : Oxford University Press. Retrieved 27 Jun. 2013, from http://www.oxfordreference.com/view/10.1093/acref/9780195160901.001.0001/acref-9780195160901-e-1796.
Where can you find Grey Literature in the Library?
