Table 2.

Summary statistics of variables in the dataset.

Variable Name	Obs	Mean	Std. Dev.	Min	Max
subjectid	716	6.49	3.45	1	12
smalleff	716	185.60	7.88	86	264
mistakes	716	2.02	7.62	0	100
dictokens	716	19.66	1.47	0	20
donated	716	4.95	4.85	0	20
kept	716	14.72	4.98	0	20
session	716	10.48	5.78	1	20
countryid	716	2.00	0.82	1	3
maintid	716	2.85	1.20	1	4
treatid	716	3.30	1.74	1	6
signal	322	43.08	18.76	15	77.5
percentgive	716	25.22	24.65	0	100
percentkept	716	74.64	24.79	0	100
age	713	22.50	3.64	2	56
gender	712	0.52	0.50	0	1
believe	709	0.81	0.39	0	1
don_locchar	714	0.43	0.50	0	1
don_church	714	0.23	0.42	0	1
don_genchar	714	0.36	0.48	0	1
don_locenvi	714	0.12	0.33	0	1
don_natenvi	714	0.08	0.26	0	1
don_intenvi	714	0.13	0.34	0	1
spent_money	710	270.34	747.36	0	10000
spent_curr∼y	N/A	N/A	N/A	N/A	N/A
spent_time	687	57.32	179.45	0	1512
look_birds	712	3.22	0.72	0	4
conserve_e∼i	711	2.90	1.00	0	4
mbirds	711	2.00	1.13	0	4
birdlife	709	1.31	0.90	0	4
dic_all	708	2.44	1.22	0	4
dic_iff	705	2.70	1.24	0	4
dic_but1	703	1.92	1.18	0	4
rank_natgov	703	4.32	1.75	0	9
rank_pubinst	704	2.84	1.30	1	7
rank_local	702	3.88	2.39	0	54
rank_int	706	2.36	1.46	1	9
rank_people	701	2.53	1.57	1	10
rank_busin∼s	703	3.88	1.89	1	10