I hope that most of us in associations conduct exit surveys, and we recently considered how we should increase our participation rates on the ASAE listserv.
Good objectives for exit survey include:
Collecting valid research results
Distinguishing between avoidable & unavoidable attrition
Ending this stage of the member relationship on a good note, and
Clean the database for subsequent efforts to reinstate those who will want to come "back to the fold" in the future.
Our advice in this area includes:
1) Do a multi-part contact sequence. Starting with the lowest cost-per-contact option and migrate into costlier ones with the deliverable names who are not responding. A typical sequence might be: #1 online survey, #2 mail or fax survey, and (possibly) #3 telephone.