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Intro to L.S
| Term | Definition |
|---|---|
| Observations | Factual statements that describe a personal experience obtained through use of one or more of the senses. |
| Qualitative Observations | Observations that determine quality, they are not measurable. Ex: Color, action, shape, texture, translucence. |
| Quantitative Observations | Observations that determine quantity, they are measurable. Ex: size, sound, mass, volume, speed, pressure, humidity. |
| Manipulated (Independent) Variable | The variable in an experiment that is purposely changed by the experimenter. Ex: Fish Exp. – Placing mirror against tank. |
| Responding (Dependent) Variable | The variable that changes as a result of changing the manipulated variable. Ex: Fish Exp. – Fish’s behavior |
| Controlled Variable | Variable that does not change, stays the same. Ex: Fish Exp. – Size of tank, water temp. type of fish. |
| Hypothesis | A testable statement that shows the relationship between the manipulated and responding variables in an experiment, it often written as an if/then statement. If a hypothesis proves to be incorrect it can still add to scientific knowledge. |
| Conclusion | A summary of the findings of an experiment that compares collected data to the hypothesis. |
| Control Group | A group that does not have the manipulated variable applied so they can be compared to the group that does have the manipulated variable applied. |
Created by:
kb0429057
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