The use of one common test will make sharing and communicating with other practitioners easy.  


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- Replicability
- Quantification
- Economy
- Communication
- Scientific Generalization
- Objectivity

Standardized Measurements

Sauro, J., & Lewis, J. (2012). Quantifying the User Experience: Practical Statistics for User Research. Elsevier Science.

Quantifying the User Experience: Practical Statistics for User Research

Replicability makes replicating studies easier.


Replicability

Results from standardized usability questionnaires are more detailed and allows practitioners to use more methods of statistics to get greater understanding of the results. 

Quantification

Communication

It is easier to make generalizations through standardization. 

Scientific Generalization

The standardized measurements allows usability practitioners to verify measurements of other practitioners.

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