LS15 Final UCLA
LS15 Final UCLA Steps of the Scientific Method: ️ 1. Make observations. 2. Formulate hypotheses. 3. Make a prediction. 4. Conduct an experiment. 5. Draw conclusions. What Makes a Hypothesis Good? ️ - It must be testable. - It must be refutable. What Does a Prediction Sound Like? ️ "If my hypothesis is true, then when I do X, Y will occur." What is Scientific Thinking? ️ 1. We make observations. 2. We formulate hypotheses. 3. We make predictions based on the hypotheses. 4. We devise and carry out experiments to test the hypotheses and alternatives. 5. We draw conclusions, modify hypotheses, and continue the process. What Does Scientific Thinking Do? ️ Scientific thinking helps us identify situations where we should change our beliefs. What is at the Core of Scientific Thinking? ️ The ability to imagine a "critical experiment." How Can You Increase Your Experiment's Power? ️ 1. Randomize subjects across control and experimental groups. 2. Control your study variables. 3. Use a double-blind design. Which Experimental Tests are Better: Those Done in Lab or in the Real World? ️ - The better controlled an experiment is, the more confidence we can have in its results. - However, as experiments become more controlled, they often become less represen
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