Table 3. Correlation matrix between the participation metrics and the average daily contribution.

Metrics	1	2	3	4
1. Activity ratio	1
2. Relative Activity Duration	-.819*	1
3. Variation in Periodicity a	-.924*	.283*	1
4. Average daily contribution	.896*	-.710*	-.824*	1

The Spearman correlation coefficients between each set of participation metrics (activity ration, relative activity duration and variation in periodicity) and the average daily contribution. The Average Daily Contribution has a strong significant positive association with Activity ratio (rs(183) = .896, p < .001) and significant strong negative associations with Variation in Periodicity (rs(75) = - .824, p < .001) and Relative Activity Duration (rs(184) = - .710, p < .001). The significance threshold is set at .05.

^a n = 75

*Correlation is significant at the 0.05 level (two-tailed)