A researcher evaluated the effect of different concentrations of electrolytes drank affected heart rate at 20, 40, and 60 minutes after electrolyte consumption.
A.) Identify the independent variable
B.) Identify the dependent variable
Would the independent variable be time or the electrolytes drink, it doesn't specify the quantity of the drink but the time doesn't change is it the control?
Would the dependant variable be heart rate, because it changes?
A.) The independent variable in this study is the concentration of electrolytes in the drink.
B.) The dependent variable is the heart rate at 20, 40, and 60 minutes after electrolyte consumption.