Correlation test¶ Pearson Correlation test¶Definition and purpose¶Measures the strength and direction of a linear association between two variables. It defines as Geometric Interpretation¶ Spearman Correlation Test¶Definition and Purpose¶ Assumption¶ Kendall rank correlation coefficient¶Definition¶ Determining significance¶ Example¶ Comparison¶ Significance Checking¶Permutation Test¶ Fisher Transformation (Fisher Z-transformation)¶ Definition¶ Examples¶ Comparison¶