A researcher wants to know if there are differences in aggressive behavior between 5 th graders, 6 th graders, and 7 th graders. Which of the following would the researcher most likely rely on? a....

A researcher wants to know if there are differences in aggressive behavior between 5^th graders, 6^th graders, and 7^th graders. Which of the following would the researcher most likely rely on?

a. Repeated-measures t-test

b. Analysis of variance

c. Correlation

d. None of the above

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?

a. Repeated-measures t-test

b. Analysis of variance

c. Chi-square test for goodness of fit

d. Correlation

e. None of the above

If calculated by hand, which of the following statistical analyses involves using one or moremeanvalue?

a. Repeated-measures t-test

b. Analysis of variance

c. Correlation

d. All of the above

e. None of the above

Jun 08, 2022

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A researcher wants to know if there are differences in aggressive behavior between 5 th graders, 6 th graders, and 7 th graders. Which of the following would the researcher most likely rely on? a....

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