Which variable is typically the outcome measured in a study?

Which variable is typically the outcome measured in a study?

• A. Independent variable
• B. Confounding variable
• C. Extraneous variable
• D. Dependent variable

Answer: (D)

The main concept is the outcome you measure to see the effect of what you manipulate. That measured result is the dependent variable—the variable whose value you record to determine how it responds when you change the other variable(s). In an experiment, you deliberately vary the independent variable to test its impact, and you observe how the dependent variable changes as a response. If there are confounding or extraneous variables, they’re other factors that can influence that outcome and potentially bias the results; they’re not the outcome itself, though they’re things you try to control or account for. So, the outcome measured in a study is the dependent variable. For example, if you’re testing whether a new feed improves weight gain in a herd, weight gain is the dependent variable, while the type or amount of feed is the independent variable.

The main concept is the outcome you measure to see the effect of what you manipulate. That measured result is the dependent variable—the variable whose value you record to determine how it responds when you change the other variable(s).

In an experiment, you deliberately vary the independent variable to test its impact, and you observe how the dependent variable changes as a response. If there are confounding or extraneous variables, they’re other factors that can influence that outcome and potentially bias the results; they’re not the outcome itself, though they’re things you try to control or account for.

So, the outcome measured in a study is the dependent variable. For example, if you’re testing whether a new feed improves weight gain in a herd, weight gain is the dependent variable, while the type or amount of feed is the independent variable.