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Experimental Design
vocabulary associated with controlled experiments
| question | answer |
|---|---|
| the factor being purposely changed | manipulated variable |
| the factor which responds to the change in the manipulated variable | responding variable |
| all the factors which are kept constant in an experiment | controlled variables |
| observations or descriptions of things noted during the experiment | qualitative observations |
| measurements taken during an experiment | data or quantitative observations |
| used to organize data | data ables |
| location of manipulated variable in a graph (which axis) | bottom or x axis |
| location of responding variable in a graph | y axis |
| human mistakes that were made and experimental errors during an experiment | experimental error |
| what to include in conclusion | restate hypothesis, summarize major results, evaluate hypothesis, what was learned and unexpected results |
| format for good experimental question | what is the effect of (manipulated variable) on (responding variable) |
| definition of a variable in an experiment ie the number of washers held before collapse is strength | operational definition |
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