Chris Graham

Chris Graham commented on Perform an independent two sample t-test 4 months, 2 weeks ago

Part b) asks for the test statistic, which is used as part of the adaptive marking in part a), so part (a) ends up pending with the "This feedback is based on your last submitted answer. Submit your changed answer to get updated feedback" message after submitting part b). It caused some confusion when students moved between questions in the exam, as they were presented with the warning that not all questions were submitted.

Chris Graham on Perform an independent two sample t-test 4 months, 2 weeks ago

Gave some feedback: Has some problems

Chris Graham commented on Arithmetics of complex numbers III 1 year ago

This was a bug in the Numbas compiler that is now fixed.

Chris Graham on Arithmetics of complex numbers III 1 year ago

Gave some feedback: Ready to use

Chris Graham commented on Arithmetics of complex numbers III 1 year ago

Correct answers are not marked as correct.

Chris Graham on Arithmetics of complex numbers III 1 year ago

Gave some feedback: Has some problems

Chris Graham commented on Exploration activity: Define a class, add methods to it, then use it 1 year, 3 months ago

Thanks for sorting the placeholder, that works how I hoped now.

The idea was to do the refactoring to build up a class in stages: given a list of methods and attributes, a student will naturally try to do the whole thing at once, then get an error and give up. So you might have some options for what other methods they want to add, or to add a subclass, etc. It was a proof of concept really, as I think the same idea could be applied to other bits of code.

Chris Graham commented on Exploration activity: Define a class, add methods to it, then use it 1 year, 4 months ago

This was perhaps wishful thinking, but I was hoping that it might be possible to use the student's answer to the first explore mode part in the second, so that they could add to it.

Chris Graham on Exploration activity: Define a class, add methods to it, then use it 1 year, 4 months ago

Gave some feedback: Doesn't work