Research Article

The Sustainability of Knowledge-Sharing Behavior Based on the Theory of Planned Behavior in Q&A Social Network Community

Table 2

Questionnaire item design.

VariableItemReference

ReciprocityWhile answering other people’s questions, I hope they can also answer my questionsShen et al. [36]
When I share knowledge, I hope to get knowledge from the platform

Group recognitionI think sharing knowledge on the platform can be recognized by othersWang et al. [28]
A user’s trust in me is the recognition of me
Sharing useful knowledge will increase others’ recognition of me

Self-efficacyI think I have the ability to share knowledge in the Zhihu communityHao et al. [21]
I think I have the ability to share knowledge in Zhihu community
I feel confident that I could provide something that the rest of the community found valuable
The knowledge I share will be helpful to other users in the community

Altruistic beliefsI want to share my knowledge, experience, insight or skills with othersGan et al. [35]
I answer questions to help people in need

Material rewardsI hope to get substantial rewards after sharing knowledgeAtreyi Kankanhalli et al.
After sharing knowledge, I think it is very important to get the corresponding commission
After sharing knowledge, I think the user’s subscription is very important
I hope that sharing valuable knowledge can be rewarded
I hope that the shared knowledge will be rewarded when it is useful to others
A certain amount of pay and influence in the community can encourage me to share knowledge

Knowledge-sharing willingnessI would like to share knowledge and information more frequently on the Zhihu communityBock and Kim [31]
I am willing to often share my experience on the Zhihu community
I am willing to share my knowledge more frequently with other users
I am willing to comment and reply other users’ answers
I would like to use the community’s reply, comment and other features regularly