Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...

Survey researchers increasingly recognize that a single survey of the general public can rarely represent the views of small groups of Americans. Such surveys frequently have too few interviews with ...

The reliance on statistical sampling is becoming an outdated risk in a data-rich world. UK audit firms must transition to full-population testing and continuous assurance, shifting the auditor's role ...