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

The analysis of the experiences and attitudes of the LGBT population in this report is based on a survey conducted April 11-29, 2013, among a sample of 1,197 self-identified LGBT adults, 18 years of ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Gordon Scott has been an active investor and technical analyst or 20+ years. He ...

The analysis in this report is based on a self-administered web survey conducted from Sept. 26 to Oct. 23, 2023, among a sample of 1,453 dyads, with each dyad (or pair) comprised of one U.S. teen ages ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Representative sampling and random sampling ...

Plant and Soil, Vol. 366, No. 1/2 (May 2013), pp. 351-361 (11 pages) Aims Tree roots are spatially highly heterogeneous and it thus requires large numbers of samples to detect statistically ...