[zeroonetwothree]

The thing is, it’s unclear why that effect would make you give people lower grades. surely an equally reasonable guess is that less cognitive abilities could make you give higher grades because you don’t notice errors?

[janci]

Sometimes you see the result is wrong so you do not give any points initially and then look on the steps and try to find something that looks correct to give at least some points. The willingness to track through every step diminishes with increasing fatigue.

[bee_rider]

It depends on what you are doing and how you are grading. I’d try to not take many points off if an error is somehow “really easy to make,” but that depends on my ability to evaluate the difficulty of mistakes.