Your CEO has followed your advice and now wants you to measure effect sizes. You report a Pearson's r of 0.50 for the impact of Unblock Me Now drain cleaner on reducing drain blockage time. Your CEO wants to know if this is bad, as she remembers that a p-value of 0.30 is not good. What do you tell her?

Question

Jasper

Business

7 August, 12:41

Your CEO has followed your advice and now wants you to measure effect sizes. You report a Pearson's r of 0.50 for the impact of Unblock Me Now drain cleaner on reducing drain blockage time. Your CEO wants to know if this is bad, as she remembers that a p-value of 0.30 is not good. What do you tell her?

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Answers (1)

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Finnegan Arnold · Answer 1

P-value and Pearson r both are unrelated

Explanation:

Pearson r value is used to measure the correlation between two variables and the p-value is used to measure the relationship both are different in many ways. The reported Pearson r value is 0.50 which is good enough to launch the project. Effect size and p-value are no related and the CEO should not worry about the results.