Table 4.

Descriptive statistics for prosocial reputation change and cooperative behavioural scores.

	n	mean (s.d.)	median	min.	max.
Δ prosocial reputation	53	−0.1 (0.3)	0	−0.75	0.5
image score	53	3.8 (9.5)	2	−14	38
standing score	53	4.2 (9.2)	2	−12	38
Δ days assisting	53	2.6 (5.0)	1	−5	23
Δ CFADs assisted	53	0.8 (2.6)	0	−4	9