Deeper-engagement interventions likely reduce partisan animosity more durably.

Evidence

Durability. Durable interventions are long-lasting, continuing to impact behaviour even in the chaotic environment of everyday life. One potential predictor of durability is the effect size of the intervention-interventions with larger effect sizes will probably last longer180. We suspect that interventions with more depth of engagement will yield larger effect sizes (that is, more powerfully reduce partisan animosity), but a formal comparison of effect sizes across interventions is beyond the scope of this paper. Just as memorizing new information is helped by experiential learning and personal relevance181, reductions in animosity may be more durable when they are ‘deeper’. For example, just reading about one’s own misconceptions14,19,29,65 may help in the short term, but they may soon creep back in after one is re-immersed in partisan media coverage. Conversely, interventions that involve repeated personal (and positive) connections with political opponents are probably more Ironically, the more researchers, public figures and the media lament the rise of political polarization, the more we may be contributing to the problem, since the more people see polarization all around them, the more polarized they become. — Rachel Hartman et al., Interventions to Reduce Partisan…, 72

Categorization

• XREF: connects to: Depolarization interventions produce only modest temporary effects on partisan animosity. — Derek E. Holliday, Yphtach Lelkes, and Sean J. Westwood, Why Depolarization Is Hard: Evaluating…, 3; Deliberation reduces affective polarization but often increases idea-based polarization. — Didier Caluwaerts et al., Deliberation and Polarization: A…, 107

Broader Connections

• Deliberation reduces affective polarization but often increases idea-based polarization. #qualifies (0.76) — Didier Caluwaerts et al., Deliberation and Polarization, 107