029ddd9f__of_North_Carolina_Chapel_Hill__Purpose_of_test
[Parametric test] Product moment correlation coefficient (Pearson's r) Spearman's rank correlation coefficient (r s ) [Example] To assess whether and to what extent plasma HbA1 concentration is related to plasma triglyceride concentration in diabetic patients [Purpose of test] 
Assesses the strength of the straight line association between two continuous variables.
Basic Statistics for EBPT - Evidence Based Physical Therapy - Subject Guides at University of North Carolina Chapel Hill
Purpose of test