A new telephone survey experiment finds that, despite major structural differences, an opinion poll drawn from a commercial voter file can produce results similar to those from a sample based on ...

One possible explanation for the variability in estimates across the different nonprobability samples is the range of methods that online sample vendors employ. They differ on recruitment, weighting ...

The Fast Company Executive Board is a private, fee-based network of influential leaders, experts, executives, and entrepreneurs who share their insights with our audience. BY Sumit Aneja Online ...

There was controversy recently over how sound data collection procedures in India are, especially when it comes to some of the important national level surveys. An article (by Shamika Ravi, Member of ...

The National Sample Survey, under the Ministry of Statistics and Programme Implementation, has been conducting large-scale sample surveys on All-India basis since the 1950s. These surveys are the most ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Systematic sampling is straightforward and low risk, offering better control. However, it may introduce sampling errors and ...