Correlations for all pairs of data series (method=pearson)
	Geslacht	Time_in_RFC	Logins	Blogged_computations	Reviewed_compendiums
Geslacht	1	0.138	0.101	0.149	0.203
Time_in_RFC	0.138	1	0.707	0.798	0.749
Logins	0.101	0.707	1	0.538	0.583
Blogged_computations	0.149	0.798	0.538	1	0.734
Reviewed_compendiums	0.203	0.749	0.583	0.734	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)