Deliberation reduces affective polarization but often increases idea-based polarization.

Evidence

What is more interesting in light of our research question, however, is the direction of the reported effects. Of the articles reporting an effect, 29 observed a negative effect (43.3%), i.e., that deliberation increased polarization, and 31 a positive effect (46.3%), i.e., that deliberation reduced polarization. Moreover, as Table 3 shows, the direction of the effect also seems to depend on the type of polarization under investigation. After all, about 41.5% of all articles on idea-based polarization show that deliberation increases polarization, whereas deliberation is reported to decrease affective polarization in 54.2% of the cases. The effect of deliberation is thus contingent on the type of polarization, and deliberation seems to be more effective at decreasing affective types of polarization than on idea-based polarization. The suggestion that having groups of citizens discuss political issues suffices to decrease the levels of polarization within the group therefore needs qualification. — Didier Caluwaerts et al., Deliberation and Polarization, 107

Both types of polarization were represented in our systematic review, but the focus was strongly skewed in favor of idea-based polarization, which occurred in 53 articles (66.3%), while only 24 incorporated elements of affective polarization (30%). Most studies thus seemed to aim at de-politicizing and defusing specific political issues, rather than at bridging emotionally intensive conflicts of identity. — Didier Caluwaerts et al., Deliberation and Polarization, 87

Categorization

• DEFINE: Clarifies the affective vs idea-based distinction that determines whether deliberation depolarizes.
• XREF: Directly relevant to the reader’s question about whether deliberative-democratic framing changes outcomes; also connects to intergroup contact and risky shift literatures. — connects to: Disciplinary priors strongly predict which direction of effect gets reported. — Didier Caluwaerts et al., Deliberation and Polarization: A…, 108; Deliberation depolarizes groups only when sufficient disagreement is present. — Didier Caluwaerts et al., Deliberation and Polarization: A…, 117; Depolarization requires deliberation framed by deliberative-democracy conditions. — Didier Caluwaerts et al., Deliberation and Polarization: A…, 136 (+3 more)
• corroborated: 2 independent passages support this claim — Didier Caluwaerts et al., Deliberation and Polarization: A…, 107; Didier Caluwaerts et al., Deliberation and Polarization: A…, 87

Related

• Deliberation reduces polarization mainly in political science studies (similarity 0.91)
• Deliberation reduces polarization only under specific deliberative frameworks (similarity 0.90)
• Depolarization requires deliberation framed by deliberative-democracy conditions. (similarity 0.90)
• Deliberation depolarizes groups only when sufficient disagreement is present. (similarity 0.88)
• Disciplinary priors strongly predict which direction of effect gets reported. (similarity 0.88)
• Deliberation depolarizes only when structured by deliberative-democracy design features, otherwise discussion polarizes. (similarity 0.87)
• Facilitated deliberation depolarizes participants while unfacilitated deliberation polarizes them. (similarity 0.86)
• Didier Caluwaerts et al. — Deliberation and Polarization A Multi-Disciplinary Review (similarity 0.85)
• Facilitation is a decisive condition for deliberation-induced depolarization. (similarity 0.84)
• Deliberation polarization effects decay is unmeasured since few studies track long-term effects. (similarity 0.84)
• Mediated rather than face-to-face deliberation tends to polarize groups (similarity 0.84)
• Depolarization interventions can succeed while creating unintended harms. (similarity 0.84)
• Communicative encounters depolarize only when framed as deliberative democracy practices. (similarity 0.83)
• Strong affective polarization across groups erodes democratic discourse (similarity 0.83)
• Deliberation reduces polarization by meeting Allport’s contact conditions and fostering common ingroup identity. (similarity 0.83)

Broader Connections

• Facilitation is a decisive condition for deliberation-induced depolarization. #expands (0.82) — Didier Caluwaerts et al., Deliberation and Polarization, 121
• Quitting social media for a month causally reduces political polarization #corroborates (0.75) — Sander van der Linden, Foolproof, 459