Sample and screening
3,097 respondents completed the survey; 1,981 were retained for analysis after quality-control exclusions, including an attention-check question and a minimum completion-time screen. The sample combines a census-balanced base of U.S. adults with an oversample of higher-income households, and it tilts toward households with $100,000 or more in investable assets, who make up 61.5% of analyzed respondents.
