
Correlation Analysis Quiz Newton
Authored by Earl Ortiz
Other
12th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a) Pearson r is a parametric test to measure the relationship of two variables.
(b) Spearman rho is the non-parametric test used to measure the relationship of two variables that cannot be used in a Pearson r analysis
Only statement (a) is correct.
Only statement (b) is correct.
Both statements are correct.
Both statements are incorrect.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a) The correlation coefficient numerical value indicates the extent of the direction of relationship.
(b) the sign of the coefficient indicates the extent of the direction of the relationship.
Only statement (a) is correct.
Only statement (b) is correct.
Both statements are correct.
Both statements are incorrect.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a) Pearson r requires an assumption a negatively-skewed data to measure the relationship of the variables.
(b) Pearson r is used when measuring the relationship between two ordinal variables.
Only statement (a) is correct.
Only statement (b) is correct.
Both statements are correct.
Both statements are incorrect.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a) A dataset with a correlation coefficient of .09 means there is a strong positive relationship between the two variables.
(b) Spearman rho coefficient of -.02 means a very weak, negative relationship.
Only statement (a) is correct.
Only statement (b) is correct.
Both statements are correct.
Both statements are incorrect.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a) To check for outliers, the researcher may visualize data through a boxplot or convert each data point to its respective z-score based on the sample.
(b) There are more than four assumptions that must be met when attempting a correlation analysis for Spearman rho.
Only statement (a) is correct.
Only statement (b) is correct.
Both statements are correct.
Both statements are incorrect.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a) Outliers through visual inspection is identifiable by fitting a trend line across the data points.
(b) Normal distribution assumption can only be determined by a normality test, such as Shapiro-Wilk.
Only statement (a) is correct.
Only statement (b) is correct.
Both statements are correct.
Both statements are incorrect.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a) A correlation analysis with p<.01 and r=.56 is an evidence against the null hypothesis.
(b) A correlation analysis with p=10 and r=-.98 is an evidence against the null hypothesis.
Only statement (a) is correct.
Only statement (b) is correct.
Both statements are correct.
Both statements are incorrect.
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