Assessing the Reliability and Validity of Survey Panels Worldwide
Maru Group
JUNE 23, 2020
In collaboration with Maru/Blue we measured the test-retest reliability and criterion validity of 28 panels in 14 countries: Australia, Brazil, China, France, Germany, India, Italy, Japan, Mexico, Russia, Singapore, South Africa, Spain and Thailand. Vendors who are Sample Certified become preferred suppliers.
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