PRE-TEST(Pearson r)
Test Your Knowledge of Pearson Correlation
Welcome to the Pearson r Quiz! This quiz is designed to test your understanding of the Pearson Product Moment Correlation, a fundamental statistical method for assessing the relationship between two variables. Whether you're a student, teacher, or simply someone interested in statistics, this quiz offers a great way to gauge your knowledge.
Test your skills and learn more about:
- Correlation coefficients
- Statistical methods
- Data analysis concepts
Which of the following is a statistical method that measures the strength of the linear relationship between two variables?
Z-value
Scatter plot
Testing hypothesis
Pearson Product Moment Correlation
Which of the following is the formula for Pearson’s sample correlation coefficient r?
0%
0
0%
0
0%
0
0%
0
Which of the following values CANNOT represent a correlation coefficient r ?
-1
0
0.25
1.001
In the Pearson r, what does n represent?
Sum of x-values
Sum of square x-values
Number of paired values
Sum of the products of paired values x and y
Which of the following is the first step in computing Pearson’s sample correlation coefficient r?
Complete the table
Construct the table
Get the sum of all entries in all columns.
Substitute all the values obtained by all summations.
0%
0
0%
0
0%
0
0%
0
-0.02
0
0.23
1
Which of the following is the range of the correlation coefficient (r)?
0 ≤ r ≤ 1
1 ≤ r ≤ -1
-1 < r < 1
-1 ≤ r ≤ 1
How is an r of 0.27 interpreted?
Strongly positive correlation
Very strong positive correlation
Weak positive correlation
Very weak positive correlation
Which of the following Pearson coefficients is considered having the strongest positive correlation?
R = -0.93
r = 0.58
r = -0.81
r = 0.75
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