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scientific method
Question | Answer | |||
---|---|---|---|---|
Experimental investigation | Lab (investigation) when hypothesis is being tested | Fair test | An experiment that changes only one factor. | |
hypothesis | educated guess | repeated trials | Completing an experiment many times. This is done to make the experiment a fair test. | |
independent variable | Change experimenter makes in an experiment. Also known as the manipulated variable. "I" change this first. | |||
dependent variable | Change 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. | |||
Observational investigation | Lab (investigation) when changes are being observed. | control | Standard of comparison |