testing application and software using metrices

I just came across this paper suggesting that best way to evaluate the framework of application is by Quality Tests consisting of:

Size Metrics:

• Lines of code (LOC).
• Bumber of statements.
• The comment lines and the ratio between comment lines and lines of code.

Complexity Metrics:

• McCabe’s cyclomatic complexity(CC),
• Branches and Depth.

Maintainability Metrics:

• Halstead metrics (Program Volume and Program Level) and Maintainability Index

Validation Tests

• Yasca (http://ift.tt/20uGkmb) software utility.
• In combination with JavaScript Lint (javascriptlint.com).
• For Overall errors include critical, high, low severity errors and informational errors.

There is no proper explaination why this test are best I wanted to take it as my research topic for master but wanted a second suggestion ..