Table 1.
Recruitment flow, cost for researcher, and options for targeting recruits by recruitment platform used, 2017.
| Recruiting channel | Options for targeting recruits | Cost for researcher | Incentives for respondent |
| Amazon Mechanical Turk | None | Pay per completed task | US $0.01-US $0.02 for screening survey, US $0.10 for completion, up to US $0.70 based on quality |
| Soapbox Sample | Targeted based on demographics and interests | Pay minimum fee plus per completed survey | 2000 points (US $2.00 equivalent) |
| Qualtrics Panel | Targeted based on demographics and interests | Pay minimum fee plus per completed survey | Paid by Qualtrics Panel |
| Targeted based on interests | Pay when ads clicked or shown | US $10 e-gift card |