Advice on setting up a Rubric for a Pass/Fail scale

Re: Advice on setting up a Rubric for a Pass/Fail scale

by Eric vanBok -
Number of replies: 6

Thank you for your ideas on this.

That is along the path I was thinking too.  However, my grading for this assignment is on a scale that is Pass/Fail.  So there is a maximum grade of 2 for it.

If I follow the logic that we are looking for 97.1% of a grade of 2, that would be a grade of 1.942 for passing, which would round to 1.94.

The thing is that doesn't work.  The issue is that as long as someone gets a yes on both criteria 9 and 10, they pass.  Even if I set the passing grade to 2.0, which is a perfect score.  It doesn't matter what they score on criteria 1 through 8.  If criteria 9 and 10 are both yes, they pass.

Maybe I have something else set wrong, but the numbers are just not adding up how I think it should work.

Is there some setting somewhere that changes how the rubric is calculated and translated into the grade for the Pass/Fail scale?

In reply to Eric vanBok

Re: Advice on setting up a Rubric for a Pass/Fail scale

by David Morrow -

Eric,

Sorry - I was thinking in terms of points, not scales. You make a 97.1 or higher and you pass. Below that you fail.

But I see your predicament, I think.

I don't know what sort of reporting you have to do. Would the activity completion report help? You could do as I describe, with the assignment being a 100 point grade and passing set to 97.1. Then, add a completion condition that a passing grade must be earned. The activity completion report would give you an at-a-glance report of who has passed/failed (as long as everyone has been graded.

Best of luck!

David

In reply to Eric vanBok

Re: Advice on setting up a Rubric for a Pass/Fail scale

by Dan McGuire -

If 2 is the maximum score possible, then make items 9 and 10 worth .8 each and the first 8 items worth .0625 each. Then you can set the passing score to be 1.85, which would mean that students would need to get 70% of the first 8 items at a pass in order to get a total passing grade. It would seem to me that creating gradations for the first 8 items is not useful or very meaningful.

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In reply to Dan McGuire

Re: Advice on setting up a Rubric for a Pass/Fail scale

by Eric vanBok -

I want to thank you both for your advice.

I have tried quite a few different setups, and unfortunately, they are all failing.  It seems like it is impossible for me to use a rubric as I want for generating a grade on a simple pass/fail scale.  No matter what I do, it just will not behave as I need it to.  It always gives a passing score if both of the yes/no questions are yes, regardless what the other 8 items are scored.

I can't figure out why.

That is leaving me to explore switching from a simple pass/fail scale to scoring it out of 100 and setting a very high passing score.  I need to see if the higher-ups will be happy with that though.  If not, I will be returning to this to see if I can suss out a solution.

In the meantime, if you happen to have other ideas, please let me know.

In reply to Eric vanBok

Re: Advice on setting up a Rubric for a Pass/Fail scale

by Richard van Iwaarden -
Picture of Particularly helpful Moodlers
Hi Eric,
You are right about this... it doesn't work.

The thing is: the rubric always calculates for itself and does not respect the 'grade to pass' setting.

A simple way to set this up:

  1. Create a rubric with 4 criteria, simple score 0 and 1
  2. Create a scale that says 'fail/pass'
  3. Set grade to pass to 2.0

What happens is the following: even if you score 75% in the rubric, you will always pass. The 'grade to pass' does not effect the rubric. The rubric always figures out that 75% of the score will be considered as passed.

I have tried some things, but I could not figure this out either. The advice that you have been given above is incorrect as far as I can see.

In reply to Richard van Iwaarden

Re: Advice on setting up a Rubric for a Pass/Fail scale

by Ryan Hazen -

I can't replicate this in the rubric with the proper max grade set in the assignment:





If the grade to pass was set at 2 this student would not have passed.

In reply to Ryan Hazen

Re: Advice on setting up a Rubric for a Pass/Fail scale

by Richard van Iwaarden -
Picture of Particularly helpful Moodlers

If the grade to pass was set at 2 this student would not have passed.

The rubric does not respect the 'grade to pass' setting - that's the problem.

Please try to make your rubric so that you only PASS if you pass all the 4 criteria (C1 to C4). Check for the same score (3 out of 4) and you will see that you will always pass the rubric.