Proposals to add questions to the GSS are considered by the PIs and the GSS Board of Overseers. Proposals to add questions ideally should be initiated about two years in advance of the administration of a GSS. For those who wish to propose items supported by the basic GSS grant from NSF see “Call for Proposals to Add Questions to GSS.” For those who have funds to support paid supplements to the GSS see "Guidelines for Paid Supplements to the GSS." Investigators seriously interested in proposing items for inclusion in a future GSS should contact the Director of the GSS, Dr. Tom W. Smith (smitht@norc.uchicago.edu).