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Mnenie [13.5K]
3 years ago
10

What type of variable is always tested in a controlled experiment

Biology
1 answer:
Ksenya-84 [330]3 years ago
3 0

In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured.

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