Question

Two studies were conducted to examine the number of hours per week spent in Blackboard and...

Two studies were conducted to examine the number of hours per week spent in Blackboard and the final grade in a course. The significance (alpha) level was set to be .05 in both studies. Study 1 obtained a result of  r = .40, p = .08;Study 2 yielded a result of  r = .35, p = .04. Which of the following is an accurate comparison between the two studies?

Study 2 showed a larger effect size than study 1.

Study 1 showed a significant correlation but study 2 did not.

Both studies show a significant correlation of medium strength

Study 2 showed a significant correlation but study 1 did not.

Two studies were conducted to examine the number of hours per week spent in Blackboard and the final grade in a course. The significance (alpha) level was set to be .05 in both studies. Study 1 obtained a result of  r = .40, p = .08;Study 2 yielded a result of  r = .35, p =.04. Which of the following is an accurate comparison between the two studies?

Study 2 showed a larger effect size than study 1.

Study 1 showed a significant correlation but study 2 did not.

Both studies show a significant correlation of medium strength

Study 2 showed a significant correlation but study 1 did not.

Homework Answers

Answer #1

Answer (both questions are same, so answer will also be same)

We know that when the p value is less than the significance level, we say that the p value is significant

and when the p value is greater than the significance level, we say that the p value is insignificant

From the question, it is clear that the p value corresponding to correlation in study 1 is 0.08, which is greater than 0.05 level of significance and p value corresponding to correlation in study 2 is 0.04, which is less than 0.05 level of significance.

Thus, we can say that the correlation in study 2 is significant and correlation in study 1 is insignificant.

So, option D is correct answer

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