
Correlation Methods Quiz
Authored by Naomi Davies-Meade
Mathematics
University

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which correlation method is best for two continuous variables with a linear relationship?
Phi coefficient
Point-biserial
Pearson’s r
Spearman’s rho
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of correlation should you use for ranked (ordinal) data?
Kendall’s tau
Spearman’s rho
Point-biserial
Pearson’s r
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If one variable is continuous and the other is a true binary variable (e.g., 0 = no, 1 = yes), which method is best?
Point-biserial
Phi coefficient
Pearson’s r
Spearman’s rho
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to measure the correlation between two naturally dichotomous variables?
Point-biserial
Spearman’s rho
Phi coefficient
Pearson’s r
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When data is not normally distributed, which correlation method is more appropriate?
Point-biserial
Pearson’s r
Phi coefficient
Spearman’s rho
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you’re analyzing the relationship between age rank and test rank, what correlation method should you use?
Spearman’s rho
Kendall’s tau
Phi coefficient
Pearson’s r
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an important assumption of Pearson’s correlation?
The data must be ordinal
The relationship between variables must be non-linear
The variables must be categorical
The relationship between variables must be linear
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