ISPS ID:
D160
Suggested citation:
Coppock, Alexander, Seth J. Hill, and Lynn Vavreck (2020). Replication Materials for, “The Small Effects of Political Advertising are Small Regardless of Context, Message, Sender, or Receiver: Evidence From 59 Real-time Randomized Experiments.” http://hdl.handle.net/10079/86060f44-fa37-43dd-968f-a7a0e09e2fca. ISPS Data Archive.
Research design:
Data type:
Survey experimental data
Data source(s):
Authors
Data source information:
isps(at)yale(dot)edu
Field Date:
2016-03 - 2016-11
Location:
Location details:
N/A
Unit of observation:
Individual
Sample size:
34,000
Inclusion/exclusion:
Our subjects were recruited by YouGov, which furnished samples of exactly 1000 (or 2000, depending on the week) complete responses. Participants were part of YouGov’s ongoing survey research panel and were invited to this particular survey after agreeing to take surveys for YouGov generally.
Randomization procedure:
Each week for 29 (not always consecutive) weeks, a representative sample of Americans was divided at random into groups and assigned to watch campaign advertisements or a placebo advertisement before answering a short survey.
Treatment:
We tested 30 advertisements attacking Republican candidate Donald Trump, 11 attacking Democratic candidate Hillary Clinton, 8 promoting Clinton, and 3 promoting Trump
Treatment administration:
Web delivered
Outcome measures:
Candidate favorability,vote intention
Archive date:
2021
Terms of use:
ISPS Data Archive: Terms of Use.
Discipline:
Area of study:
