When documenting an experiment, which variable is typically recorded as the main outcome related to the hypothesis?

When documenting an experiment, which variable is typically recorded as the main outcome related to the hypothesis?

• A. Dependent Variable
• B. Independent Variable
• C. Control Variable
• D. Constant

Answer: (A)

The main idea is what you measure to see the effect of what you change. The outcome you record is the dependent variable—the data that show how the system responds when you vary the independent variable. For example, if you test how fertilizer amount affects plant growth, the plant growth measurements (height, biomass, or germination rate) are the dependent variable because they depend on how much fertilizer you use. The independent variable is what you deliberately change (fertilizer amount). You keep other factors the same—these are control variables—so they don’t influence the outcome. Constants are things that stay the same across trials, aligning with keeping controls fixed. So the main outcome related to the hypothesis is the dependent variable.

The main idea is what you measure to see the effect of what you change. The outcome you record is the dependent variable—the data that show how the system responds when you vary the independent variable. For example, if you test how fertilizer amount affects plant growth, the plant growth measurements (height, biomass, or germination rate) are the dependent variable because they depend on how much fertilizer you use. The independent variable is what you deliberately change (fertilizer amount). You keep other factors the same—these are control variables—so they don’t influence the outcome. Constants are things that stay the same across trials, aligning with keeping controls fixed. So the main outcome related to the hypothesis is the dependent variable.