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BTW: Mazur also noted in our conversation that his years of experience on the Physics AP design committee made him less than enthusiastic about AP’s. He has data showing that student who got 5s on the Physics AP do worse than other Harvard Physics students who did not take the AP’s – a sobering thought.

In the real world of scientific investigation, she said, scientists usually rely on a model-based process rather than a hypothesis-driven one. They formulate models based on what they know from previous research and then derive testable hypotheses from those models. Data from experiments don’t validate or invalidate hypotheses as much as they feed back into the models to generate better research questions.