Figure 1.

CROSS^a flow diagram of respondents. ^a Checklist for Reporting of Survey Studies

^b Incomplete entries were define as surveys in which respondents exited the survey prior to the survey end, or who left the survey unfinished after more than 24 hours.

^c To be considered a robotic entry, the responses had to occur during “blast” of a large number of responses, be linked to a Twitter recruitment post, and have a survey completion time of less than three minutes.