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5 Cards in this Set

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