01:119:150 Lecture Notes - Lecture 2: Bifocals, Confidence Interval, Inductive Reasoning
27 Apr 2019
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Steps of the scientific method: careful observations and questions about those observations, a testable hypothesis that provides an explanation about the observations and answers to the questions; Formulate a question in such a way that we can test it. For example: the kind of glasses you wear impacts how your eyesight changes. Or more specifically: bifocal and prismatic bifocal glasses lower the rate of myopic progression in children. Myopia - close objects appear clearly, but far things don"t; nearsightedness. Progression - how quickly the eyesight of children are getting worse: make a prediction and then design an experiment with a control group to determine if the hypothesis can be falsified or rejected; Experimental group - exposed to something new. Confidence interval - how confident we are with the data. Bars in the graph: a conclusion based on the results of the experiment; and.
