The usefulness of the Basic Question Procedure for determining non-response bias in substantive variables – a test of four telephone questionnaires
Henk van Goor and Annemiek van GoorUniversity of Groningen
Non-response bias endangers the representativeness and validity of survey research. However, the extent of non-response bias in our data is seldom known because of a lack of information on non-respondents. Even if information on non-respondents is available – for instance, from the sampling frame – this information is usually restricted to demographic variables, such as gender, age and place of residence. We know considerably...