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| What is seen or measured. |
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| A conclusion baced on observation or evidence. |
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| An untested prediction. A good hypothesis both cause and effect ("If-then" statement). |
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| A broad explanation of natural events that is supported by strong evidence. |
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| Compares the results of an experiment between two (or more) groups. |
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| Group being tested or receiving treatment.(ex:new drug) |
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| "Normal" group. Should be identical to experimental group in every way except one:it dose nor recive the treatment(i.e.:no drug,or given the original drug or a placebo). |
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| A sugar pill or other "fake" treatment give to the control group so subjects do not know which group they are in. |
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| Variable that is being tested(ex:new drug). In a graph the independent variable is always plotted on the Xaxis. |
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| Variable that is measured at the end of an experiment;the results(ex:dose patient get better?)The dependent variable is always plotted on the Y axis |
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| Characteristics of a good experiment |
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| 1. Can be repeated by anyone and get the same results. |
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| 2. Have large sample size/many test subjects. |
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| 3. Are preformed for longer periods of time. |
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| 4. Test only one variable. |
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| 5. Are peer reviewed-examined by several scientists to determin its accuracy. |
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| 6. Does not have to agree with the 6. hypothesis. A scientist's guess is allowed to be incorrect- and usually is. |
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