That's useful information, thanks. I'll add some thoughts on the rubric.

[edit]. Initial thoughts:

- "data wrangling" scoring difficult given this task - more weight to "rationale", that's more important the "performance", here.

- not enough focus on communication capabilities

- really need something on validation

- "proficiency" measure you use is pretty much impossible to accurately evaluate from your example question

- way too much weight to modeling section overall