RDP 2024-02: Valuing Safety and Privacy in Retail Central Bank Digital Currency Appendix A: Sample Attrition

Zan Fairweather, Denzil Fiebig, Adam Gorajek, Rochelle Guttmann, June Ma and Jack Mulqueeney

April 2024

Here we measure how the average age, sex, and income of survey participants changes over four stages of the 2022 Consumer Payments Survey. Those stages are:

  1. ‘Post recruitment’, in which 1,903 individuals completed a brief recruitment questionnaire.
  2. ‘Pre-diary’, in which 1,270 individuals completed a questionnaire focused on their demographic characteristics.
  3. ‘Payments diary’, in which 1,018 individuals recorded details about transactions they made over a seven-day period.
  4. ‘Post-diary’, in which 999 individuals completed a supplementary set of questions, including the question for our discrete choice experiment.
Figure A1: Survey Attrition Testing
Sample mean, by survey stage participants completed, 2022
Figure A1: Survey Attrition Testing - a three panel dot plot with shading showing the average demographics (in particular: age, the share of people who are female, and household income) at each stage of the Consumer Payments Survey. The message is that, on average, the people who completed the later stages of the survey are slightly older, slightly more likely to be female, and have similar incomes. The shading around the dots represents uncertainty around our estimates.

Note: Shading shows 95 per cent confidence intervals.

Source: RBA calculations, based on data from Ipsos.