Which variable is observed or measured to assess the effect of the treatment?

Which variable is observed or measured to assess the effect of the treatment?

• A. Predictor Variable
• B. Parameter
• C. Dependent Variable
• D. Independent Variable

Answer: (C)

In experiments, you manipulate one thing (the treatment) and look at what happens to another measure to see the effect. The thing you actually observe or measure to assess that effect is the dependent variable—the outcome you record after applying the treatment. For example, if you test a new teaching method and measure test scores, the test scores are the dependent variable. The variable you control or vary to produce differences is the independent (or predictor) variable. A parameter is a population value that you typically estimate from data, not the specific outcome you measure in each participant. So the observed outcome used to gauge the treatment’s impact is the dependent variable.

In experiments, you manipulate one thing (the treatment) and look at what happens to another measure to see the effect. The thing you actually observe or measure to assess that effect is the dependent variable—the outcome you record after applying the treatment. For example, if you test a new teaching method and measure test scores, the test scores are the dependent variable. The variable you control or vary to produce differences is the independent (or predictor) variable. A parameter is a population value that you typically estimate from data, not the specific outcome you measure in each participant. So the observed outcome used to gauge the treatment’s impact is the dependent variable.