Evaluating professors and types of variables: Weinberg, Fleisher, and Hashimoto

Question

Evaluating professors and types of variables: Weinberg, Fleisher, and Hashimoto (2007) studied almost 50,000 students' evaluations of their professors in almost 400 economics courses at The Ohio State University over a 10-year period.

One finding was that students' ratings of their professors were not predictive of grades for other, related future classes. (The researchers stated that these first two findings suggest that student ratings of professors are tied to their current grades but not to learning—which would affect future grades.)

Which statistical test would the researchers have used for the above finding?

paired-samples t test

Pearson correlation

independent-samples t test

chi-square test for independence

paired-samples t test

Pearson correlation

independent-samples t test

chi-square test for independence

Explanation / Answer

I think it is chi-square test for independence of attributes.

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