Correlations for all pairs of data series (method=kendall)
	blogged_computations	compendiums_reviewed	feedback_messages_p120	totsize	totseconds	Int.Mot.
blogged_computations	1	0.421	0.422	0.427	0.52	0.019
compendiums_reviewed	0.421	1	0.637	0.224	0.277	0.019
feedback_messages_p120	0.422	0.637	1	0.318	0.343	0.056
totsize	0.427	0.224	0.318	1	0.493	-0.115
totseconds	0.52	0.277	0.343	0.493	1	0.081
Int.Mot.	0.019	0.019	0.056	-0.115	0.081	1

Correlations for all pairs of data series with p-values
pair	Pearson r	Spearman rho	Kendall tau
blogged_computations;compendiums_reviewed	0.6067	0.5504	0.4207
p-value	(0)	(0)	(0)
blogged_computations;feedback_messages_p120	0.6266	0.5624	0.4219
p-value	(0)	(0)	(0)
blogged_computations;totsize	0.5427	0.5723	0.4265
p-value	(0)	(0)	(0)
blogged_computations;totseconds	0.7244	0.6816	0.5199
p-value	(0)	(0)	(0)
blogged_computations;Int.Mot.	0.032	0.0295	0.019
p-value	(0.7611)	(0.7788)	(0.7903)
compendiums_reviewed;feedback_messages_p120	0.881	0.7922	0.6371
p-value	(0)	(0)	(0)
compendiums_reviewed;totsize	0.4564	0.3089	0.2241
p-value	(0)	(0.0026)	(0.0018)
compendiums_reviewed;totseconds	0.4911	0.3763	0.2766
p-value	(0)	(2e-04)	(1e-04)
compendiums_reviewed;Int.Mot.	-0.0152	0.0295	0.0194
p-value	(0.8853)	(0.7789)	(0.79)
feedback_messages_p120;totsize	0.5137	0.4446	0.3182
p-value	(0)	(0)	(0)
feedback_messages_p120;totseconds	0.5505	0.47	0.3426
p-value	(0)	(0)	(0)
feedback_messages_p120;Int.Mot.	0.0416	0.0887	0.0555
p-value	(0.6924)	(0.398)	(0.4387)
totsize;totseconds	0.6967	0.653	0.4932
p-value	(0)	(0)	(0)
totsize;Int.Mot.	-0.1012	-0.172	-0.1153
p-value	(0.3343)	(0.0992)	(0.1063)
totseconds;Int.Mot.	0.0936	0.1264	0.0811
p-value	(0.3722)	(0.2273)	(0.2558)