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11 Cards in this Set
- Front
- Back
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Hypothesis |
A possible explanation for something you observe. "If.... then..." |
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Experiments |
Are studies in which the investigator imposes a specific treatment on a person or thing while controlling the other factors that might influence the response |
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Observational study |
Scientists observe individuals and measure variables of interest without trying to control the variables or influence the response. |
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Independent variable |
The one variable that a scientist manipulates in a given experiment. It explains or influences the response. Changes by the scientist's own hands. |
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Dependent variable |
Are those affected by the imposed treatment . They represent an indivual's response to the independent variable. |
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Treatment group |
Is the experiment that you're doing. The thing youre trying to change. |
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Control group |
This experiment you will use to see if the treatment group changes. You change nothing and compare it to your treatment group. |
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Negative control |
Are not treated with the independent variable and are not expected to show a response. |
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Positive control |
Are not treated with the independent variable but represent a reference for treatment groups that demonstrate a response consistent with the hypothesis. |
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Null hypothesis |
Which states that the treatment has no effect on the response |
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Statistical interference |
Drawing conclusions about populations or scientific truths from data. |
