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Researchers measured the trait of openness to experience (on a standardized numerical scale) for a group of college freshmen. Then, they measured the trait for
Researchers measured the trait of openness to experience (on a standardized numerical scale) for a group of college freshmen. Then, they measured the trait for the same group of students when they were college seniors. They were interested in whether there was an average difference in the scores. Which statistical analysis should be performed to answer the researchers' question? O Single-sample t test Repeated-measures t test z-test O Independent-samples t test
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