264
edits
2021 Survey Results: Difference between revisions
→Selection biases apparent in the survey
|
A member of the community independently published the questions separately from the survey. This injected an additional selection bias by alerting some potential respondents to the specific questions to be asked, causing some of them to decline to participate. The Board had deliberately declined to publish the questions in advance so as to avoid this problem.
Post-survey, we noted that members of the OpenStreetMap Foundation were overrepresented. Based on the demographic data, slightly more than 1/5 of respondents declared themselves to be Foundation members. However, comparison of summary statistics of the entire sample with summary statistics of Foundation members revealed no substantial bias in the data due to this. It is highly probable that employees of NGOs and firms using OSM data
=== Assumptions ===
| |||