When the world has been stepping into the internet era, SNSs play a crucial role in political participation in terms of driving the collective action as well as it may tend to increase online users' exposure to biased and distorted news. This phenomenon is called “confirmation bias.” The previous research on their mixed impact on confirmation bias and social influences has not been investigated. This research’s objective is to identify impacts of social influence processes and informational valuation processes on participation behavior in SNSs in political context. The experiment was conducted during the political crisis in Thailand. Firstly, this study implements an online experimental survey as a quantitative research instrument to explore the informational valuation processes (i.e., confirmation bias, strength of prior belief and perceived knowledge). Secondly, the research framework proposed by this study is based on the BDI model, we-intention, and related literature. Lastly, quantitative research was conducted through PLS-SEM to test the hypothesis and framework. Results show that both Facebook and Twitter, perceived knowledge didn’t affect the relationship between strength of prior belief and confirmation bias, and there was no mediation effect of desire toward perceived knowledge and we-intention. We also found that in the political context, social influence processes have a greater impact than informational valuation processes on we-intention to use SNSs for political collaboration during political crises.

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