Table 5. Moderator analyses.

	Prosocial attitudes	Prosocial behavior
Notes. We included moderators in the analyses that divided experiments into subgroups of at least three experiments. *We collapsed active and passive movement into “movement” due to the small number of experiments in the passive movement subgroup (k = 2). n.a. = The number of studies in one subgroup was below the cutoff of k = 3.
Intentional vs. incidental	g = 0.41 [0.26; 0.56], k = 16 vs. g = 0.52 [0.42; 0.62], k = 32; Q = 1.35, p = .25	g = 0.64 [0.41; 0.87], k = 14 vs. g = 0.31 [0.13; 0.50], k = 21; Q = 4.72, p = .03
Large vs. small muscle involvement	g = 0.45 [0.30; 0.61], k = 15 vs. g = 0.50 [0.40; 0.60], k = 33; Q = 0.24, p = .62	g = 0.58 [0.35; 0.81], k = 15 vs. g = 0.35 [0.16; 0.54], k = 20; Q = 2.24, p = .13
Known vs. unknown interaction partner	g = 0.66, [0.38; 0.93], k = 4 vs. g = 0.46 [0.34; 0.59], k = 18; Q = 1.54, p = .22	n.a.
Different-sex vs. same-sex interaction partner	g = 0.42 [0.26; 0.582], k = 18 vs. g = 0.50 [0.39; 0.62], k = 24; Q = 0.71, p = .40	g = 0.39 [0.19; 0.59], k = 19 vs. g = 0.50 [0.24; 0.76], k = 11; Q = 0.42, p = .52
Group vs. dyad	g = 0.40 [0.25; 0.56], k = 18 vs. g = 0.52 [0.42; 0.62], k = 30; Q = 1.63, p = .20	g = 0.38 [0.18; 0.58], k = 20 vs. g = 0.54 [0.30; 0.78], k = 15; Q = 1.01, p = .31
No music vs. music	g = 0.53 [0.42; 0.63], k = 28 vs. g = 0.42 [0.28; 0.56], k = 20; Q = 1.58, p = .21	g = 0.46 [0.17; 0.74], k = 10 vs. g = 0.45 [0.26; 0.63], k = 25; Q = 0.004, p = .95
Experimenter blinded vs. not blinded vs. unknown	g = 0.31 [0.13; 0.48], k = 11 vs. g = 0.60 [0.51; 0.69], k = 27 vs. g = 0.29 [0.13; 0.45], k = 10; Q = 15.60, p < .001	g = 0.07 [−0.19; 0.33], k = 9 vs. g = 0.63 [0.44; 0.82], k = 17 vs. g = 0.44 [0.17; 0.70], k = 9; Q = 11.62, p = .003
No manipulation check vs. manipulation check	g = 0.50 [0.40; 0.60], k = 34 vs. g = 0.45 [0.28; 0.62], k = 14; Q = 0.26, p = .61	g = 0.42 [0.23; 0.61], k = 22 vs. g = 0.50 [0.24; 0.77], k = 13; Q = 0.26, p = .61
Between vs. within-subjects design	g = 0.44 [0.33; 0.56], k = 30 vs. g = 0.54 [0.41; 0.66], k = 18; Q = 1.13, p = .29	g = 0.45 [0.29; 0.62], k = 31 vs. g = 0.41 [−0.03; 0.85], k = 4; Q = 0.03, p = .86
Movement vs. sensory stimulation*	g = 0.43 [0.32; 0.55], k = 31 vs. g = 0.56 [0.43; 0.68], k = 17; Q = 2.01, p = .16	g = 0.47 [0.31; 0.63], k = 32 vs. g = 0.25 [−0.24; 0.74], k = 3; Q = 0.69, p = .41