The Essential Guide to RDD Telephone Samples in Europe
Random Digit Dialing, or RDD, is a method used to gather information through telephone surveys. It helps researchers collect data from a […]
ISO Certifications in times of Corona: Sample Solutions is ISO 20252:2019 and ISO 27001:2017 Recertified!
In June 2018 as we had our first ISO 20252:2012 audit, one year later we got ISO 27001:2013 certification as well! Ever […]
Telephone Sample: Quality vs Speed vs Cost
When doing telephone fieldwork, there are many factors that determine the quality and the profitability of the project, one of which is […]
