A research methods student conducts a study on the relationship between people’s
ID: 3489159 • Letter: A
Question
A research methods student conducts a study on the relationship between people’s level of extroversion and the number of close friends they have. She computes Pearson’s r, which comes out to be – 1.70. Which of the following is most clearly true?
Question 5 options:
The relationship between the two variables is weak.
More extroverted people have fewer friends.
She ought to use a bar graph to display her results.
She made an error in computing Pearson’s r.
The relationship between the two variables is weak.
More extroverted people have fewer friends.
She ought to use a bar graph to display her results.
She made an error in computing Pearson’s r.
Explanation / Answer
The correct answer would be d) she made an error in computing Pearson's r , as the values of r lie from 1 to -1 with 1 showing a 100 percent positive correlation and -1 showing 100 percent negative correlation and 0 means no correlation between the 2 variables.The correlation cannot be more than 100%. , therefore the value of -1.7 cannot be true for r.
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