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. Author manuscript; available in PMC: 2022 Jul 5.
Published in final edited form as: Comput Educ. 2022 Jul;184:104515. doi: 10.1016/j.compedu.2022.104515

Table 4. Participation metrics extracted from log files.

Metric Definition N Minimum value Maximum value Median SD
Number of contributions Number of classifications made by young people 27 1 9966 499 2849
Activity ratio The ratio of days contributing at least one classification to the total days registered with Zooniverse. The closer to one, the more active a user is Average time devoted on completing a task in seconds 27 .01 10 .05 0.32
Mean time devoted Average time devoted on completing a task in seconds 27 8.8 2699 98 641
ESA1 Aspect of ESA 27 2 6 4 1.12
ESA2 Aspect of ESA 27 3 7 5 0.96
ESA3 Aspect of ESA 27 0 4 1 1.15
ESA_all Combined ESA aspects 27 7 14 11 2.05
*

It is noted that Zooniverse users can contribute to projects without being logged in the platform and these contributions cannot be captured by log files. Therefore, these numbers may not be accurate for some of the users.