Table 2 Interaction terms for time (T1-T2) and experimental condition and for time, experimental condition and group for all outcome variables

From: A post-Brexit intergroup contact intervention reduces affective polarization between Leavers and Remainers short-term

Variable

Interaction terms

Time × Condition

Time × Condition × Group

Outgroup affect and cognition

Feeling thermometer

B = 9.61, SE = 3.45, 95% CI [2.85, 16.38], Z = 2.79, p = 0.005, ΔR2 = 0.01

B = −2.90, SE = 6.22, 95% CI [−15.09, 9.29], Z = −0.47, p = 0.641, ΔR2 = 0.001

Negative emotions

B = −0.14, SE = 0.19, 95% CI [−0.52, 0.23], Z = −0.75, p = 0.451, ΔR2 = 0.001

B = 0.12, SE = 0.32, 95% CI [−0.50, 0.75], Z = 0.39, p = 0.699, ΔR2 = 0.00

Stereotype: Intolerant

B = −0.26, SE = 0.36, 95% CI [−0.95, 0.44], Z = −0.72, p = 0.472, ΔR2 = 0.001

B = 0.09, SE = 0.64, 95% CI [−1.16, 1.33], Z = 0.13, p = 0.893, ΔR2 = 0.00

Stereotype: Intelligent

B = 0.44, SE = 0.31, 95% CI [−0.17, 1.06], Z = 1.41, p = 0.159, ΔR2 = 0.001

B = −1.03, SE = 0.55, 95% CI [−2.12, 0.05], Z = −1.87, p = 0.062, ΔR2 = 0.005

Rationality

B = 0.30, SE = 0.22, 95% CI [−0.13, 0.73], Z = 1.36, p = 0.173, ΔR2 = 0.002

B = −0.83, SE = 0.39, 95% CI [−1.60, −0.06], Z = −2.12, p = 0.034, ΔR2 = 0.003

Emotionality

B = −0.65, SE = 0.31, 95% CI [−1.26, −0.04], Z = −2.08, p = 0.038, ΔR2 = 0.001

B = 0.40, SE = 0.60, 95% CI [−0.78, 1.59], Z = 0.67, p = 0.503, ΔR2 = 0.001

Externality

B = −0.59, SE = 0.28, 95% CI [−1.14, −0.04], Z = −2.09, p = 0.037, ΔR2 = 0.001

B = 0.89, SE = 0.49, 95% CI [−0.08, 1.85], Z = 1.80, p = 0.072, ΔR2 = 0.00

Contempt

B = −0.34, SE = 0.19, 95% CI [−0.72, 0.04], Z = −1.76, p = 0.079, ΔR2 = 0.003

B = 0.38, SE = 0.39, 95% CI [−0.38, 1.14], Z = 0.98, p = 0.326, ΔR2 = 0.00

Meta-beliefs

Meta-emotions

B = −0.27, SE = 0.29, 95% CI [−0.84, 0.31], Z = −0.91, p = 0.363, ΔR2 = 0.001

B = 0.57, SE = 0.58, 95% CI [−0.57, 1.71], Z = 0.98, p = 0.329, ΔR2 = 0.00

Meta-Intelligence

B = 0.59, SE = 0.32, 95% CI [−0.05, 1.22], Z = 1.82, p = 0.068, ΔR2 = 0.01

B = −0.05, SE = 0.61, 95% CI [−1.25, 1.16], Z = −0.08, p = 0.940, ΔR2 = 0.00

Meta-Intolerance

B = −0.50, SE = 0.41, 95% CI [−1.30, 0.31], Z = −1.21, p = 0.228, ΔR2 = 0.002

B = −0.46, SE = 0.73, 95% CI [−1.88, 0.97], Z = −0.63, p = 0.528, ΔR2 = 0.00

Political outcomes

Compromise

B = 0.35, SE = 0.18, 95% CI [0.004, 0.69], Z = 1.98, p = 0.047, ΔR2 = 0.003

B = 0.01, SE = 0.42, 95% CI [−0.82, 0.83], Z = 0.02, p = 0.985, ΔR2 = 0.00

Brexit beliefs

B = −0.14, SE = 0.14, 95% CI [−0.41, 0.14], Z = −0.98, p = 0.329, ΔR2 = 0.001

B = 0.46, SE = 0.28, 95% CI [−0.09, 1.00], Z = 1.64, p = 0.102, ΔR2 = 0.001

Collective action

B = −0.09, SE = 0.31, 95% CI [−0.70, 0.51], Z = −0.30, p = 0.765, ΔR2 = 0.00

B = −0.77, SE = 0.60, 95% CI [−1.95, 0.40], Z = −1.29, p = 0.198, ΔR2 = 0.001

Traditional contact mediators

Intergroup anxiety

B = 0.02, SE = 0.27, 95% CI [−0.52, 0.55], Z = 0.07, p = 0.948, ΔR2 = 0.00

B = 0.60, SE = 0.49, 95% CI [−0.36, 1.55], Z = 1.23, p = 0.220, ΔR2 = 0.001

Empathy

B = 0.23, SE = 0.24, 95% CI [−0.24, 0.70], Z = 0.97, p = 0.331, ΔR2 = 0.002

B = 0.10, SE = 0.49, 95% CI [−0.86, 1.07], Z = 0.21, p = 0.835, ΔR2 = 0.00

Perspective taking

B = 0.19, SE = 0.28, 95% CI [−0.37, 0.75], Z = 0.67, p = 0.504, ΔR2 = 0.001

B = −0.18, SE = 0.48, 95% CI [−1.11, 0.76], Z = −0.38, p = 0.707, ΔR2 = 0.00

  1. Statistically significant interactions are printed in bold. R2s (and their differences) were computed following102.
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