EDUC 812 Quiz 6
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1. Which of the following correlations represents the strongest possible relationship between X and Y:
2. When conducting multiple correlation analyses, one way to reduce the risk of type 1 error is to:
3. The sign (+/-) of r provides information about the strength of the relationship between X and Y.
4. Suppose that you want to run 4 correlations, and you want your Experiment wise α (EWα) to be .05. What per-comparison α (PCα) would you use if you applied the Bonferroni procedure?
5. The results for a Pearson’s r for students’ perceived learning and their sense of community were, r (45) = .72, p = .02. What can the researcher conclude?
6. The results for a Pearson’s r between students’ test scores and their motivation were, r (24) = .32, p = .07. What can the researcher conclude?
7. The results for a Pearson’s r between students’ anxiety and their achievement were, r (90) = – .75, p = .03. What can the researcher conclude?
8. A positive correlation between two variables, X and Y, indicates that:
9. What type of graph best represents a correlation?
10. It is appropriate to make a causal inference based on Pearson’s r alone.
11. Pearson’s r(48) = .80, p = .02 can be interpreted as
12. A negative correlation between two variables, X and Y, indicates that:
13. Pearson’s r can also be considered as:
14. The results for a Pearson’s r for online, university students’ perceived learning and their sense of community were, r (22) = .32, p = .07. What can the researcher conclude?
15. What do we look at the sign of r (+ or -) to decide?