Is my experiment valid? “My experiment is valid because…” Think about: Was it well designed? Did it give the results you expected? Do the results agree.

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Presentation transcript:

Is my experiment valid? “My experiment is valid because…” Think about: Was it well designed? Did it give the results you expected? Do the results agree with the theory?

Are my results reliable? “My results are all / not / mostly reliable because…” Think about: Are the percentage spreads below 10%? Are they all reliable? Do some results have a larger spread than others? Are there any anomalous results? What could have caused them? Would you repeat any results?

Is there any bias in my results? “My results are are / are not biased because…” Think about: Does the graph start at zero? Did the newton meter read “zero” when there was no force? Did you check this? Would you change anything if you repeated the experiment?