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Unformatted text preview: descriptive or inferential statistics you should employ? The design of the study and the scale of measurement used 6. What is the difference between an experiment and a correlational study? In an experiment, we manipulate the independent variable and then measure the scores on the dependent variable. However in a correlational study, neither variable is actively manipulated. 9. What is the general purpose of all research, whether experiments or correlational studies? To discover relationships between variables, which may reflect how nature operates. 11. (a) What is the difference between a statistic and a parameter? A statistic describes a characteristic of a sample of scores. A parameter describes a characteristic of a population of scores....
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- Spring '10