Exploring survey data with the pewmethods R package
This post provides tips on recoding and collapsing survey data and displaying weighted estimates of categorical variables.
Numbers, Facts and Trends Shaping Your World
Arnold Lau
Research Methodologist
Publications
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report
Introducing pewmethods: An R package for working with survey data
Our new R package contains various functions that we use in our day-to-day survey work.
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report
Assessing the Risks to Online Polls From Bogus Respondents
While the growth of online interviewing is a prominent trend in polling, there is variation within that trend in how researchers recruit respondents. This study finds that sourcing affects data quality.
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short reads
Why survey estimates of the number of Americans online don’t always agree
How many U.S. adults use the internet? There are a lot of sources with answers to this question. Yet these different sources can be tricky to reconcile.
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report
When Online Survey Respondents Only ‘Select Some That Apply’
when designing an online survey questionnaire, there is more than one way to ask a respondent to select which options in a series applies to them.
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report
Comparing MRP to raking for online opt-in polls
In a recent study about online opt-in polling, Pew Research Center compared a variety of weighting approaches and found that complex…
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report
For Weighting Online Opt-In Samples, What Matters Most?
A growing share of polling is conducted with online opt-in, or nonprobability, samples. This trend has raised some concern within the industry because, while low participation rates pose a challenge for all surveys, the online opt-in variety face additional hurdles.
