Tue Apr 20 18:57:52 2021


frac percent models
simple percent problems





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427 workspaces; 964 KCs
**    - ask stephen about this; the numbers seem high

75 workspaces attempted by more than 200 students
   - how many KC's in these workspaces

performance metrics
  -- assistance score
  -- success rate on first attempt

assistance score correlation cutoff > 0.1
(highest is around 0.3)

success rate cutoff > 0.1
(highest is around ??)

correlation between success rate and assistance score?

suggestion: edge if corr for both measures high?

remake graphs holding position of nodes fixed (or links of different
colors in the same graph)

(how is succes rate and assistance score aggregated over workspace?)

** (confirm with steve that one workspace has to be completed before
another one starts)