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The purpose of this study is to use a developed and pre-tested scenario-based measurement instrument for policy compliance and determine whether policy compliance measurements in the current policy compliance research are biased as has been postulated during a pre-study. The expected biases are because of social desirability and because of biases based on identity theory.

A survey was conducted (n = 54) that used policy compliance scales from literature and the developed self-reporting policy compliance (SRPC) scale, along with the Marlow–Crowne social desirability (MC-SDB) scale. Differences between the policy compliance scales were assessed. Moreover, a transformation of the SRPC measurements into the literature-based scales was examined using pair-wise t-testing. Finally, correlations between the MC-SDB and the policy compliance scales were examined.

There are no significant influences on the desire for social approval of the respondents as was exhibited by the MC-SDB values and policy compliance on either scale. However, the SRPC scale measurements show deviations from the literature-based policy compliance scales. Individuals that exhibit secure behaviour, which is not rooted in a policy but rather in anything but the policy, are also captured as being policy compliant in the current scales. This shows that a response bias exists in current scales. Respondents, who perceive to exhibit secure behaviours, may think that they are in compliance with the policy, even when they are not.

These findings mean that several contributions in the field of policy compliance must be questioned and that a revisit of several factors influencing policy compliance may be required.

To the best of the authors’ knowledge, response biases in policy compliance research have not been considered to date.