What is the outcome factor that may change in response to manipulations of the independent variable?

What is the outcome factor that may change in response to manipulations of the independent variable?

• A. Dependent variable
• B. Independent variable
• C. Enzymes
• D. Homeostatic mechanisms

Answer: (A)

In an experiment, you change one factor on purpose and look for a result that reflects that change. The factor you measure as the outcome is called the dependent variable. It’s the data you collect to see how the manipulated situation affects it. For example, if you tweak the amount of fertilizer (the independent variable) and then measure plant growth, plant height or biomass is the dependent variable—the outcome that responds to the change. The factor you actively alter isn’t the outcome itself; that’s the independent variable. The other items listed aren’t the general outcome you’d track in this setup: enzymes are specific biological catalysts, and homeostatic mechanisms are regulatory processes. They may play roles in a system, but they aren’t the broad term for the measurable result that changes in response to the manipulation.

In an experiment, you change one factor on purpose and look for a result that reflects that change. The factor you measure as the outcome is called the dependent variable. It’s the data you collect to see how the manipulated situation affects it. For example, if you tweak the amount of fertilizer (the independent variable) and then measure plant growth, plant height or biomass is the dependent variable—the outcome that responds to the change.

The factor you actively alter isn’t the outcome itself; that’s the independent variable. The other items listed aren’t the general outcome you’d track in this setup: enzymes are specific biological catalysts, and homeostatic mechanisms are regulatory processes. They may play roles in a system, but they aren’t the broad term for the measurable result that changes in response to the manipulation.