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5 Cards in this Set
- Front
- Back
What are the basic steps in the scientific method?
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1, Make observations, 2. Formulate a hypothesis 3. Devise a testable prediction 4. Conduct a critical experiment 5. Draw conclusions and make revisions
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What kind of statement is the Null hypothesis?
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A negative statement that proposes that there is no relationship between two factors.
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Are Null hypotheses valid?
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Yes. They are equally valid but easier to disprove.
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The following is a possible hypothesis: Echinacea reduces the duration and severity of the symptoms of the common cold. Is this a Null hypothesis?
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No. If you were to frame this hypothesis as a Null hypothesis, it could be written as: Echinacea has no effect on the duration or severity of the symptoms of the common cold.
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In the context of an experiment, what is "treatment"?
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Any experimental condition applied to individuals.
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