En relación a la metodología de la encuesta reflejada en el OP,
este hilo[/url] refleja la metodología, indicando ser ésta:
This survey was conducted online within the United States between October 6-11, 2022, among 2,029 adults (aged 18 and over) by The Harris Poll on behalf of Grayscale Investments via its Harris On Demand omnibus product.
Data were weighted where necessary by age, gender, race/ethnicity, region, education, marital status, household size, household income, employment, and propensity to be online, to bring them in line with their actual proportions in the population.
Respondents for this survey were selected from among those who have agreed to participate in The Harris Poll surveys. The sampling precision of Harris online polls is measured by using a Bayesian credible interval. For this study, the sample data is accurate to within + 2.8 percentage points using a 95% confidence level. This credible interval will be wider among subsets of the surveyed population of interest.
All sample surveys and polls, whether or not they use probability sampling, are subject to other multiple sources of error which are most often not possible to quantify or estimate, including, but not limited to coverage error, error associated with nonresponse, error associated with question wording and response options, and post-survey weighting and adjustments.
El segundo párrafo indica que hay algo de cocina para adaptar los datos, algo que probablemente no sea significativo al no ser los datos rotos de manera más granular.
En el primer párrafo indican que utilizaron el producto
Harris On Demand. Por lo que he entendido, el producto se basa en poder encuestar al un público objetivo acorde a unos parámetros de selección, siendo los encuestados
pagados por completar la encuesta. Como decía, la clave aquí es saber (que no lo sabemos) exactamente cómo fue seleccionado el público objetivo, y si este ya tiene de por sí un sesgo por participar en este tipo de encuestas online de por sí.