In research Mahdi Roghanizad of Western University and I conducted, recently published in the Journal of Experimental Social Psychology, we have found that people tend to overestimate the power of their persuasiveness via text-based communication, and underestimate the power of their persuasiveness via face-to-face communication.
In one study, we had 45 participants ask 450 strangers (10 strangers each) to complete a brief survey. All participants made the exact same request following the exact same script; however, half of the participants made their requests over email, while the other half asked face-to-face.
We found that people were much more likely to agree to complete a survey when they were asked in-person as opposed to over email. These findings are consistent with previous research showing that people are more likely to comply with requests in person than over email.
