Why 8% to 15% Response Rates Are Normal - and How to Set Evaluation Thresholds That Don’t Break Your Study
https://www.bookmarkingvictor.win/why-over-optimized-anchor-text-is-wrecking-link-roi-and-what-works-instead
Why seeing 8% to 15% response rates should not make you panic The data suggests that for most unsolicited outreach - email invites, open web surveys, or cold panels - response rates between 8% and 15% are the routine outcome, not a failure