IPSOS is actually D+0.2 in their Mean-Reverted-Bias according to 538
TOPLINE & METHODOLOGY
About the Study
This ABC News/Ipsos Poll was conducted March 18th to 19th, 2020 by Ipsos using the probability based KnowledgePanel®. This poll is based on a nationally representative probability sample of 512 general population adults age 18 or older.
The survey was conducted using KnowledgePanel, the largest and most well-established online
probability-based panel that is representative of the adult US population. Our recruitment process
employs a scientifically developed addressed-based sampling methodology using the latest Delivery
Sequence File of the USPS – a database with full coverage of all delivery points in the US.
Households invited to join the panel are randomly selected from all available households in the U.S.
Persons in the sampled households are invited to join and participate in the panel. Those selected
who do not already have internet access are provided a tablet and internet connection at no cost to
the panel member. Those who join the panel and who are selected to participate in a survey are sent
a unique password-protected log-in used to complete surveys online. As a result of our recruitment
and sampling methodologies, samples from KnowledgePanel cover all households regardless of
their phone or internet and findings can be reported with a margin of sampling error and projected to
the general population.
The study was conducted in both English and Spanish. The data were weighted to adjust for gender
by age, race, education, Census region, metropolitan status, household income, and party
identification. The demographic benchmarks came from the 2019 March supplement of the U.S.
Census Bureau’s Current Population Survey (CPS). Party ID benchmarks are from recent ABC
News/Washington Post telephone polls. The weighting categories were as follows:
• Gender (Male/Female) by Age (18–29, 30–44, 45–59, and 60+)
• Race/Hispanic Ethnicity (White/Non-Hispanic, Black/Non-Hispanic, Other or 2+ Races/NonHispanic, Hispanic)
• Education (Less than High School, High School graduate, Some College, Bachelor and
beyond)
• Census Region (Northeast, Midwest, South, West)
• Metropolitan status (Metro, non-Metro)
• Household Income (Under $25,000, $25,000-$49,999, $50,000-$74,999, $75,000-$99,999,
$100,000-$149,999, $150,000+)
• Party ID (Democrat, Republican, Independent, Other/None)
The margin of sampling error is plus or minus 5.0 percentage points at the 95% confidence level, for
results based on the entire sample of adults. The margin of sampling error takes into account the
design effect, which was 1.35. The margin of sampling error is higher and varies for results based on
sub-samples. In our reporting of the findings, percentage points are rounded off to the nearest whole
number. As a result, percentages in a given table column may total slightly higher or lower than
100%. In questions that permit multiple responses, columns may total substantially more than 100%,
depending on the number of different responses offered by each respondent.
About Ipsos
Ipsos is the world’s third largest market research company, present in 90 markets and employing
more than 18,000 people.
Our passionately curious research professionals, analysts and scientists have built unique multispecialist capabilities that provide true understanding and powerful insights into the actions, opinions
and motivations of citizens, consumers, patients, customers or employees. We serve more than
5000 clients across the world with 75 business solutions.
Founded in France in 1975, Ipsos is listed on the Euronext Paris since July 1st, 1999. The company
is part of the SBF 120 and the Mid-60 index and is eligible for the Deferred Settlement Service
(SRD).
ISIN code FR0000073298, Reuters ISOS.PA, Bloomberg IPS:FP www.ipsos.com
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