Hiding Sensitive Topics by Design? An Experiment on the Reduction of Social Desirability Bias in Factorial Surveys

Authors

  • Sandra Walzenbach University of Konstanz

DOI:

https://doi.org/10.18148/srm/2019.v1i1.7243

Keywords:

factorial survey, vignette study, sensitive topics, social desirability bias, justice norms

Abstract

Factorial survey designs have gained increasing popularity within the social sciences. Compared to single-item questions, the method allows the researcher to model more realistic, multidimensional decision scenarios. Furthermore, it has been argued that assessing sensitive dimensions in factorial surveys can help to overcome social desirability bias. One rarely used implementation mode is the between subject design, in which the sensitive dimension varies only between respondents. This method is assumed to attract less attention than a design based on the usual within subject implementation, where respondents see variations on the sensitive dimension among their vignettes. In order to empirically evaluate the between design and its potential to reduce social desirability bias, we conducted an experiment within a general population online survey. Using a split-half design, the sensitive dimension in the vignette texts was either varied within or between subjects. More precisely, the factorial survey module under study assessed respondents’ judgements on just fees for early childcare. Among other dimensions, the vignette texts included the child’s religious denomination (Christian, Muslim, none) as one possible attribute on which discrimination can be based. The split-half approach allows us to compare the widely used within subject design to the alternative between approach. Furthermore, data on respondent characteristics is used to obtain insights about differential design effects for different education groups (differential social desirability bias) and respondents from different religious backgrounds (ingroup favouritism). While results concerning a differential social desirability bias were inconclusive, we found evidence for ingroup favouritism from respondents without a religious denomination in the between condition. In general, our findings suggest that the between subject design is a suitable method for reducing social desirability bias in factorial surveys.

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Published

2019-04-11

How to Cite

Walzenbach, S. (2019). Hiding Sensitive Topics by Design? An Experiment on the Reduction of Social Desirability Bias in Factorial Surveys. Survey Research Methods, 13(1), 103–121. https://doi.org/10.18148/srm/2019.v1i1.7243

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