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Experimental data in science is data produced by a measurement, test method, experimental design or quasi-experimental design. In clinical research any data produced as a result of clinical trial. Experimental data may be qualitative or quantitative, each being appropriate for different investigations.
Generally speaking, qualitative data is considered more descriptive and can be subjective in comparison to having a continuous measurement scale that produces numbers. Whereas quantitative data is gathered in a manner that is normally experimentally repeatable, qualitative information is usually more closely related to phenomenal meaning and is, therefore, subject to interpretation by individual observers.
Experimental data can be reproduced by a variety of different investigators and lends itself to mathematical analysis.
- NIST/SEMATEK (2008) Handbook of Statistical Methods
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