“…communication norms are time-and place-varying (Bentivegna & Rega, 2022;Bormann, Tranow et al, 2022;Jamieson et al, 2015;Massaro & Stryker, 2012). Likewise, perceived incivility differs systematically based on characteristics of the speaker, including whether male or female, an ordinary citizen or member of the political elite, and a fellow partisan or a political opponent (Frimer & Skitka, 2020;Muddiman, 2017Muddiman, , 2019Mutz, 2015;Stryker et al, 2023); characteristics of the target, including the target's race and gender and whether a fellow partisan or political opponent (Gervais, 2016;Gubitz, 2022;Liang & Zhang, 2021); characteristics of the observer, including observer's race, gender, political partisanship, age, and personality indicators such as conflict avoidance and agreeableness (Ben-Porath, 2010;Conway & Stryker, 2021; K. L. Fridkin & Kenney, 2011;Kenski et al, 2020;Mutz & Reeves, 2005;Stryker et al, 2023); and characteristics of the speech context, including specific media platforms and political fora, and the various roles speakers, targets, and audience evaluators play in them (Bormann, 2022;Conway & Stryker, 2021;Massaro & Stryker, 2012;Sydnor, 2019). Scholarly definitions of incivility also differ and may do so in perpetuity (Jamieson et al, 2015; see also Bormann, Tranow et al, 2022;Stryker et al, 2016).…”