Refer to the journal article given as Original Source 2 on the companion website, “Development and initial validation of the Hangover Symptoms Scale: Prevalence and correlates of hangover symptoms in college students.” On page 1447 it says: “The HSS [Hangover Symptoms Scale] was significantly positively associated with the frequency of drinking (r = 0.44).”
a. What two variables were measured for each person to provide this result?
b. Explain what is meant by r = .44.
c. What is meant by the word significantly as it is used in the quote?
d. The authors did not provide a regression equation relating the two variables. If a regression equation were to be found for the two variables in the quote, which one do you think would be the logical explanatory variable? Explain.