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What is the factor deliberately changed in an experiment called?

Answer and explanation

Correct answer: Independent variable

In an experiment, the independent variable is the factor that the investigator deliberately changes. The purpose is to observe whether that change produces an effect on another factor. The dependent variable is the outcome that is measured, while controlled variables are kept the same so that the comparison is fair. A conclusion is an interpretation, not a variable.

Option C is correct because it names the deliberately changed factor as the independent variable. For example, if different amounts of water are given to otherwise similar plants, water amount is independent and plant growth may be dependent. An observation is information collected through seeing or measuring, and a conclusion explains what the results suggest. Identifying these roles prevents confusion in experimental design.

Related tags

Independent VariableExperimentFactorScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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