Non-response in social networks: The impact of different non-response treatments on the stability of blockmodels

► Blockmodeling results can be affected by both actor non-response and treatments of non-response in complex ways. ► There is no one best treatment of actor non-response. ► The symmetry of a network has a dramatic but complex impacts on determining best treatments for actor non-response. ► Overall, blockmodeling results based on structural equivalence is very stable.