Correlations for all pairs of data series (method=kendall)
	Geslacht	Time_in_RFC	Logins	Blogged_computations	Reviewed_compendiums
Geslacht	1	0.077	0.058	0.056	0.037
Time_in_RFC	0.077	1	0.609	0.683	0.59
Logins	0.058	0.609	1	0.523	0.453
Blogged_computations	0.056	0.683	0.523	1	0.574
Reviewed_compendiums	0.037	0.59	0.453	0.574	1

Correlations for all pairs of data series with p-values
pair	Pearson r	Spearman rho	Kendall tau
Geslacht;Time_in_RFC	0.095	0.0941	0.077
p-value	(0.107)	(0.1105)	(0.1104)
Geslacht;Logins	0.0589	0.071	0.0584
p-value	(0.3182)	(0.2287)	(0.2281)
Geslacht;Blogged_computations	0.0684	0.0687	0.0564
p-value	(0.2461)	(0.2443)	(0.2437)
Geslacht;Reviewed_compendiums	0.0699	0.0447	0.0371
p-value	(0.2365)	(0.4486)	(0.4476)
Time_in_RFC;Logins	0.716	0.7982	0.609
p-value	(0)	(0)	(0)
Time_in_RFC;Blogged_computations	0.8309	0.8717	0.683
p-value	(0)	(0)	(0)
Time_in_RFC;Reviewed_compendiums	0.758	0.7892	0.5899
p-value	(0)	(0)	(0)
Logins;Blogged_computations	0.5661	0.7178	0.523
p-value	(0)	(0)	(0)
Logins;Reviewed_compendiums	0.5488	0.6284	0.4525
p-value	(0)	(0)	(0)
Blogged_computations;Reviewed_compendiums	0.7623	0.7722	0.574
p-value	(0)	(0)	(0)