If you know someone that may be a fit for a particular study, you can refer them and if they successfully take part you can earn $50. If you refer someone to the site as a whole and they partake in a study, you can earn $20. Be respondent to emails, acknowledge them and confirm attendance. You will be sent the link in advance, whether it’s Skype, Zoom or GoTo meeting. Always try and get it set up and tested prior to the meeting.