A researcher wants to know if exercise reduces anxiety in older people. She recruits a sample of elderly individuals and measures their anxiety using Smith’s Anxiety Scale (2012). Next, she has each individual engage in modest exercise for 20 minutes. Finally, she measures their anxiety once more. Which of the following would the researcher most likely be using? Group of answer choices Repeated-measures t-test Analysis of variance Chi-square test for goodness of fit Correlation None of the above

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