Biology, 28.08.2020 21:01 pancakefox7
You are interested in how stress affects heart rate in humans. Your independent variable would be the stress and the dependent variable would be the heart rate. You can directly manipulate stress levels in your human subjects and measure how those stress levels change heart rate. How could you manipulate this stress?
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You are interested in how stress affects heart rate in humans. Your independent variable would be th...
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