Podcast
Questions and Answers
What does a correlation coefficient (r) of 1 indicate?
What does a correlation coefficient (r) of 1 indicate?
- Perfect negative association
- Perfect positive association (correct)
- Moderate positive association
- No association
When is the assumption of normal bivariate distribution rarely met?
When is the assumption of normal bivariate distribution rarely met?
- When there are no outliers
- When the sample size is large
- When there is no autocorrelation
- When the sample size is small (correct)
What does the Spearman Rank Correlation measure?
What does the Spearman Rank Correlation measure?
- Strength of association considering the order (correct)
- Strength of association without considering the order
- Strength of linear association
- Strength of non-linear association
In correlation analysis, which factor can influence the correlation coefficient?
In correlation analysis, which factor can influence the correlation coefficient?
What does a correlation coefficient (r) of 0 indicate?
What does a correlation coefficient (r) of 0 indicate?
What does the absolute value of the correlation coefficient (|r|) represent?
What does the absolute value of the correlation coefficient (|r|) represent?
What is the formula for the Spearman rank correlation coefficient?
What is the formula for the Spearman rank correlation coefficient?
What does the Spearman rank correlation coefficient measure?
What does the Spearman rank correlation coefficient measure?
What is the purpose of the partial correlation coefficient?
What is the purpose of the partial correlation coefficient?
Which hypothesis is tested in the significance test for correlation coefficient?
Which hypothesis is tested in the significance test for correlation coefficient?
How is the rejection of the null hypothesis determined using a t-test for correlation coefficient?
How is the rejection of the null hypothesis determined using a t-test for correlation coefficient?
What does the p-value signify in statistical significance testing?
What does the p-value signify in statistical significance testing?
What does a p-value of 0.03 indicate in statistical significance testing?
What does a p-value of 0.03 indicate in statistical significance testing?
What is the purpose of a nonparametric Monte Carlo Randomization test?
What is the purpose of a nonparametric Monte Carlo Randomization test?
What do degrees of freedom represent in statistical testing?
What do degrees of freedom represent in statistical testing?
How are critical values used in statistical testing?
How are critical values used in statistical testing?
What do you use a t table for in statistical testing?
What do you use a t table for in statistical testing?
