Phone integrity checks, one phone number per head, ID checks at Tier 2 and the checks that keep running afterwards. What we do, what we keep, and why we publish it.
What the evidence says about pay and data quality, what it does not show, and exactly how 50heads splits what a requester pays between the head, verification and the platform.
Seven questions to put to any online research panel, covering identity, duplicates, attention, device signals, pay, transparency and appeals, with an honest list of where 50heads is still limited.
Four different threats to online answers, fake accounts, automated environments, inattentive people and AI-written text, and the check that addresses each. What 50heads checks, what it does not claim, and questions to ask any provider.
