Table 1.

HLM parameter estimates indexing contributions of individual, relationship and network factors on self-reported likelihood of altruistic behaviour.

parameter	estimate	s.e.	d.f.	t	p
intercept	−0.81	0.27	309.16	−3.00	0.003
sex	−0.03	0.08	281.22	−0.31	0.754
agreeableness	0.06	0.02	280.27	2.99	0.003
conscientiousness	−0.06	0.03	278.74	−2.13	0.034
years known	0.02	0	2096.11	14.28	<0.001
frequency of contact	0.16	0.01	2087.27	16.77	<0.001
agreeableness (friend)	0.04	0	2036.28	8.90	<0.001
conscientiousness (friend)	0.04	0.01	2043.93	6.66	<0.001
network connections (friend)	0.03	0.01	2227.73	3.44	0.001