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Scientific Method
Term | Definition |
---|---|
Observational investigation | Lab (investigation) when changes are being observed. |
Experimental investigation | Lab (investigation) when hypothesis is being tested. |
hypothesis | educated guess |
independent variable | Change experimenter makes in an experiment. Also known as the manipulated variable. |
dependent variable | hange that responds to the IV. This change depends on the IV. This change is the data collected or data measured to determine if the IV has an effect. This change happens after the IV. |
constant | The factors that must stay the same in order for the experiment to be a fair test. The experimenter may only change one variable--the IV--all other factors must stay the same. |
control | Standard of comparison |
Fair test | An experiment that changes only one factor. |
repeated trials | Completing an experiment many times. This is done to make the experiment a fair test. |