I have always found that the comments section of vaccine articles are much more interesting than the article itself. Why? Because this is where real battle is unfolding between anti and pro vaxxers. We found that there are a LOT of really smart people out there.
This got us thinking. What if we could harness the potential of these really smart people - to "direct the rider" to "shape the path".
But is it more influential? It turns out that maybe so. In one recent study they found that people were equally persuaded by the PSA and the online comments after. The kicker is that if the comments were made by a health care provider then they were more persuaded by the online comment than the actual PSA. Mind blown.
Summary of study:
https://news.wsu.edu/2015/02/02/online-comments-influence-opinions-on-vacci...Journal study titled: Reexamining Health Messages in the Digital Age: A Fresh Look at Source Credibility Effects
They conducted two experiments. In the first, they showed 129 participants two made-up PSAs. One from the CDC, one from National Vaccine Information Council (NVIC).
The PSAs were followed by comments from fictitious online commenters who either expressed pro- or anti-vaccination viewpoints. Participants weren’t told anything about who the commenters were, and unisex names were used to avoid potential gender biases.
After looking at the PSAs and comments, people responded to questionnaires that rated their likelihood to vaccinate themselves and their family members, as well as their opinions about vaccination.
The researchers found that the participants were "equally persuaded" by the public service announcements and online comments.
"People were trusting the random online commenters just as much as the [public service announcement] itself."
In the second experiment, participants were told the fictitious commenters were an English literature student, a lobbyist specializing in healthcare issues and a medical doctor specializing in infectious diseases and vaccinology. The researchers determined that participants found the doctor’s comments to be more impactful than the PSAs.
“We found that when both the sponsor of the PSA and the relevant expertise of the online commenters were identified, the impact of these comments on participants’ attitudes and behavioral intentions was greater than the impact of the PSA and its associated credibility,” the researchers wrote.
They recommended that advertisers clearly identify the expertise of the commenter – for example, a medical doctor specializing in a related field of medicine.