Sturgis, Patrick; Roberts, Caroline; Smith, Patten - In: Sociological Methods & Research 43 (2014) 1, pp. 15-38
not have an opinion on the issue. We find the vast majority of responses turn out to be what we term `face-saving donâ …€™t knows’ and that reallocating these responses from the mid-point to the don’t know category significantly alters …