Pollard Gough
08/11/2023 · Junior High School
Question 2 A researcher is analyzing the impact of caffeine on reaction time. Which of the following statements is true? The independent variable is the amount of caffeine consumed. The independent variable is the type of reaction test. The dependent variable is the age of participants.
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The true statement is: **The independent variable is the amount of caffeine consumed.**
In this context, the independent variable is what the researcher manipulates (the amount of caffeine), while the dependent variable would be the reaction time, which is what is measured in response to the manipulation. The age of participants is a characteristic of the sample but is not the dependent variable in this study.
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The independent variable is the amount of caffeine consumed.
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