Could Better Teaching Be Partly Responsible for Grade Inflation?

How do you know one teaching method is better than another?
How do you know when you’ve successfully developed more effective ways for students to learn the material in your courses?
If students are learning better, does that mean that they are earning better grades?

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How do we tell better learning from grade inflation?
I wish I had some answers to these questions. I don’t.
In evaluating teacher effectiveness and quality, we tend to rely on course evaluation questionnaires.

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