Systematic sampling is straightforward and low risk, offering better control. However, it may introduce sampling errors and ...
The data in this report is drawn from a national cross-sectional, address-based sampling (ABS) survey conducted for Pew Research Center by Westat. This survey was fielded Nov. 19, 2019, through June 3 ...
Between Nov. 17, 2019, and March 23, 2020, Pew Research Center completed 29,999 face-to-face interviews with non-institutionalized adults ages 18 and older living in 26 states and three union ...
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