A spokesperson for Facebook said: “The only thing this poll shows is that self reported behavioral data is unreliable. For decades, studies that look at people’s actual, real-world behavior have shown that ads on all mediums, including social media, effect the things people buy.”
A spokesperson for Twitter did not respond to a request for comment.
Gallup’s results were based on a web and mail study of 18,525 adults, aged 18 and older, that was conducted between December 2012 and January 2013. The study does not break out influence by platform.
