Correlations for all pairs of data series (method=kendall)
	Geslacht	Time_in_RFC	Logins	Blogged_computations	Reviewed_compendiums
Geslacht	1	0.107	0.082	0.109	0.146
Time_in_RFC	0.107	1	0.607	0.61	0.502
Logins	0.082	0.607	1	0.478	0.447
Blogged_computations	0.109	0.61	0.478	1	0.494
Reviewed_compendiums	0.146	0.502	0.447	0.494	1

Correlations for all pairs of data series with p-values
pair	Pearson r	Spearman rho	Kendall tau
Geslacht;Time_in_RFC	0.138	0.1309	0.1072
p-value	(0.078)	(0.0949)	(0.0948)
Geslacht;Logins	0.1006	0.1002	0.0825
p-value	(0.1998)	(0.2017)	(0.2007)
Geslacht;Blogged_computations	0.1491	0.1319	0.1085
p-value	(0.0568)	(0.0922)	(0.0922)
Geslacht;Reviewed_compendiums	0.2032	0.1751	0.146
p-value	(0.0091)	(0.0249)	(0.0254)
Time_in_RFC;Logins	0.7074	0.782	0.6071
p-value	(0)	(0)	(0)
Time_in_RFC;Blogged_computations	0.7983	0.7798	0.6095
p-value	(0)	(0)	(0)
Time_in_RFC;Reviewed_compendiums	0.7489	0.6563	0.5015
p-value	(0)	(0)	(0)
Logins;Blogged_computations	0.5383	0.6465	0.4777
p-value	(0)	(0)	(0)
Logins;Reviewed_compendiums	0.5834	0.5999	0.4467
p-value	(0)	(0)	(0)
Blogged_computations;Reviewed_compendiums	0.7336	0.6499	0.4945
p-value	(0)	(0)	(0)