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What is the dependent variable in an experiment?

Answer and explanation

Correct answer: The outcome that is measured or observed

An experiment usually includes a factor that the investigator changes, other conditions that are controlled, and an outcome that is observed or measured. The dependent variable is this outcome. Its value may change because of the independent variable, so it is called dependent. For example, if the amount of light is changed and plant height is recorded, plant height is the dependent variable. It is important to measure it consistently so that the results can be compared fairly.

Option D is correct because it identifies the dependent variable as the result that is measured or observed. Option A describes a controlled variable, which is kept the same to make the test fair. Options B and C are not definitions of experimental variables; an experiment’s name and the instrument’s size do not automatically represent the outcome. Therefore, the dependent variable is best understood as the measured response to a change made during the investigation.

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ScienceDependent-VariableOutcomeNature And Meaning Of ScienceExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceClass 9 Mcq

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