Table 1.

Item pool and structure of ICT Self-efficacy Scale.

Index	Item	Whether in the final version (Y/N)
Domain: Privacy and Safety
1	I can easily hide any activities marked or shared by others on my personal webpage on my most used social networking sites (i.e., Facebook, Weibo, WeChat, QQ, Twitter, Skype, etc.).	Y
2	I can easily block or restrict anyone on my most used social networking sites or apps (i.e., Facebook, Weibo, WeChat, QQ, Twitter, Skype, etc.).	Y
3	I can easily dissolve friendships with anyone on my most used social networking sites or apps (i.e., Facebook, Weibo, WeChat, QQ, Twitter, Skype, etc.).	Y
4	I can easily set a password or PIN code (an identification technology) on my cell phones for security issues.	N
5	I can easily change the password of the email or social networking account that I often use.	Y
6	I can easily report any fake account that claims to be mine.	N
7	I can easily report any ID, post, image, or video as spam or abusive content on my most used social networking sites or apps (i.e., Facebook, Weibo, WeChat, QQ, Twitter, Skype, etc.).	N
8	I can easily change privacy settings on my most used social networking sites or apps (i.e., Facebook, Weibo, WeChat, QQ, Twitter, Skype, etc.).	N
9	I can easily recover my email or social networking account if I forget my password.	N
Domain: Differencing
10	I can easily deal with spam messages in emails or on social networking sites (i.e., Facebook, Weibo, WeChat, QQ, Twitter, Skype, etc.).	Y
11	I can easily judge whether or not the message posted by other people on social networking sites is correct.	Y
12	I can easily identify which information on social networking sites is trustworthy.	Y
13	I am fully aware of the possible consequences of my actions on the Internet.	N
Domain: Communication
14	I can express my point of view in any online discussion forum.	Y
15	I can easily learn its features and functions in a short time when I open any social networking site (i.e., reply, like, etc.).	N
16	I can easily use chat rooms on the Internet.	Y
17	I can easily use the webcam to chat with others.	Y
18	I can easily communicate with friends in a social media group (i.e., WeChat group, QQ group, WhatsApp group, etc.)	Y
Domain: Learning and Application
19	I can easily edit and modify any picture using software on my computer or cell phone (i.e., photoshop, meitu, Snapseed, etc.).	Y
20	I can easily express my point of view using emojis or pictures when chatting with friends online.	N
21	I can easily find digital resources that interest me if I want to.	N
22	If I try my best, I can always find the right software, App, etc., or program it myself to solve the problem.	Y
23	I can easily make and edit short videos using my computer or mobile phone.	Y
24	If I want, I can learn a language and do programming development.	Y

Please note that the English version of the ICTSE scale is not validated.