A researcher interested in the effects of

A researcher interested in the effects of test anxiety on math test performance finds 40 volunteers; students who report high levels of test anxiety The researcher randomly assigns 20 of the students to a workshop on relaxation techniques and the other 20 students to a workshop on basic computer skills. After four weeks of classes, the researcher compares the average math test scores of the two groups to see which group has a better score. The independent variable in this study is ____________, and the dependent variable is ____________. A: type of workshop; math test scores B: length of the workshop; test anxiety C: Test anxiety; length of the workshops D: math test scores, type of workshop.

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