Abstract
This paper presents two studies that identify two distinct types of information verification strategies, as well as the role of partisanship in the variation of their interplay. Audience-mediation refers to the propensity to rely on social connections as references for verification. On the other hand, expert-direction involves the utilization of professional information channels for authenticity judgment. These findings are anchored in two evolutionary psychology frameworks. The Evaluative Space Model explains humans' evolved preference for empirical evidence, and the Traditional Moral Values Triad highlights the role of group dynamics in fostering reliance on social ties. Contemporary extensions of these theories elucidate that while US citizens basically prioritize expert-direction, Republicans' reliance on audience-mediation creates a divergence in verification strategies compared to Democrats.