Table 3.

Domains, indicators, and items for the instrument of e-professionalism—opportunity aspect of SNSs^a.

Domain and indicator		Item	Directionb
Proactive posting of expert information of public health interest
	Sharing posts that contain general medical advice	I share posts on social media that contain general medical/dental advice.	+
	Sharing new scientific knowledge in the field of medicine	I use my profile to share information about new scientific knowledge in the field of medicine/dental medicine.	+
	Debunking medical myths and misinformation	I debunk medical/dental myths and misinformation by posting on SNS.	+
	Calling for public health actions	I use SNS to raise public awareness of public health actions.	+
	Encouraging responsible behavior	I create posts on SNS that call for responsible health behavior.	+
Scientific objectivity
	Emphasis on distinguishing personal medical opinions from facts	In the posts, I clearly separate my personal opinion on a medical/dental issue from scientifically confirmed facts.	+

^aSNS: social networking site.

^bAll items are formulated in the same direction so a higher frequency measures a higher level of e-professionalism.