Received a letter from Acurian Research in about September. Well-designed phish to get personal information. Received follow-up after I completed the initial screening, scheduled an appt for a, "Video," screening. Received an e-mail shortly thereafter saying that the study was currently filled and call back for an appointment at a later time. Kept getting reminders about, "Video," conference after the, "Thanks-but-no-thanks," e-mail. Comes the day of the, "Conference," was hounded with reminder e-mails and clicked on the link at the appointed time. Got this message - "Sorry. The time for your video conference has passed. Please reschedule." BS, I thought. So I Googled Acurian Research and started reading about all the complaints. Sure 'nuff, previous complaints mirrored mine. The company is a front for some other scam. Not sure what it is but I will no longer respond to requests for me to participate in Covid research.