Talk given to the 1st Learning Analytics and Knowledge Conference, 2011, in Banff, Canada. Liveblog notes available here http://t.co/6bg6Juq

1. iSpot Analysed: Participatory Learning & Reputation LAK11, Banff, 28 February 2011 Doug Clow and Elpida Makriyannis,

4. Take a photo

7. iSpot ecosystem

9. underpinning theory

10. Fairy Rings of Participation (Makriyannis & De Liddo, 2010)

12. general analytics

13. Visits to iSpot, from Google Analytics

14. Observations posted to iSpot, by month posted, from iSpot database

15. Observations posted by month observed, from iSpot database

16. reputation and learning

20. reputation analytics

21. Invertebrates: Observations per user, ordered by number of observations

22. it’s not a power law

23. Invertebrates: observations per user, ordered by number of observations, log-log plot, showing power law (dotted line) with exponent of -1.3

24. The Learning Analytics Cycle

26. Invertebrates: log plot of reputation received, ranked by reputation received, showing clear discontinuity at reputation < 1.0.

27. Invertebrates: reputation received, log-log plot, first 618 users (reputation score  1.0), showing power law ( dotted line ) with an exponent of -1.4.

28. it’s not a power law

29. Invertebrates – reputation received for users with reputation < 1.0, showing logarithmic curve fit ( solid line ) giving y = -0.197ln(x) + 0.8317, R 2 = 0.98. NB Not log plot.

30. it’s not a power law (but it might be logarithmic)

31. Invertebrates: Reputation given ordered by reputation given, log-log plot, showing power law ( dotted line ) with exponent of -3.6.

32. it’s not a power law

33. Agreements received against agreements given for Invertebrates, log-log plot, showing fitted power law ( dotted line ) with exponent 0.57 and R 2 = 0.47.

34. Reputation received against reputation given for Invertebrates, log-log plot, showing fitted power law ( dotted line ) with exponent 0.345 and R 2 = 0.62.

35. it’s not a power law

36. what have we learned?

39. future work