A summary of ABC News' polling standards and survey methodology follows. ABC News maintains standards for disclosure, validity, reliability and unbiased content in survey research and evaluates ...

A web-based survey form was posted on the web using Infopoll software from May 13 - July 9, 2008. Results were collected and collated automatically. E-mail invitations were sent to readers of The ...

Among them, this article focuses on the latest cases of European countries that attempt to shift their survey methods based on probability sampling from conventional ones such as face-to-face ...

While this practice is common for consumer polls and makes surveying the public much more accessible, this method lacks the broader applicability of randomized sampling. Finally, this survey ...

This survey has made a number of changes in methodology, which has caused some confusion among the commentariat. We will briefly examine these changes and their rationale. Changes in Schedules of ...

The World Bank study compares household and enterprise survey methods to measure informal businesses in Ghana, revealing ...