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While testing the effect of music on plant growth the plants were kept in different rooms. One room was also warmer. What type of problem is this?

Answer and explanation

Correct answer: Confounding variable

Temperature may also affect growth making the effect of music difficult to isolate. A second factor changing with the treatment is a confounding variable.

Related tags

Confounding VariablePlant ExperimentMusicTemperatureHypothesis And ExperimentationExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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