SLT_426 Correlation Calculator Worksheet

2-Method Comparison:

• Use when comparing 2 internal multi-analyte methods performing the same tests.

• "Means" of both methods are calculated and compared to the "Grand Mean".

• A statistical ratio is generated using biases and historical CV's.      


• Interpretation of "Acceptable" or "Unacceptable" method bias is provided.

Adapted from an Excel Worksheet found on the pSMILE website which is a great source of modifiable policies and procedures, tools, educational information, and lab-related links.

Comparison Testing Demystified: Applications of Correlation Testing

Paul Richardson, Mark Swartz, and Anne Sholander

Correlation Testing for Quantitative Assays - Guidelines

Johns Hopkins University - SMILE