Survey methodology encompasses the systematic approach to designing, administering and analysing surveys to ensure reliable and valid data. Central to this discipline is the optimisation of response ...
Results for the survey are based on telephone, face-to-face and online interviews conducted under the direction of Gallup, Kantar Public, Langer Research Associates and Social Research Centre. The ...
Results for the survey are based on telephone interviews conducted under the direction of Gallup and Langer Research Associates. The results are based on national samples, unless otherwise noted. More ...
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