# Experimental data

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Data produced through experimental methods

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**Experimental data** in [science](/source/Science) and engineering is [data](/source/Data) produced by a [measurement](/source/Measurement), [test method](/source/Test_method), [experimental design](/source/Experimental_design) or [quasi-experimental design](/source/Quasi-experimental_design). In [clinical research](/source/Clinical_research) any data produced are the result of a clinical trial. Experimental data may be [qualitative](/source/Qualitative_data) or [quantitative](/source/Quantitative_data), each being appropriate for different [investigations](/source/Scientific_research).

Generally speaking, [qualitative data](/source/Qualitative_data) are considered more [descriptive](/source/Observational_study) and can be [subjective](/source/Phenomenology_(psychology)) in comparison to having a continuous measurement scale that produces numbers. Whereas [quantitative data](/source/Quantitative_data) are gathered in a manner that is normally [experimentally repeatable](/source/Repeatability), qualitative [information](/source/Information) is usually more closely related to phenomenal [meaning](/source/Meaning_(philosophy_of_language)) and is, therefore, subject to [interpretation](/source/Scientific_modelling) by individual [observers](/source/Objectivity_(science)).

Experimental data can be reproduced by a variety of different investigators and [mathematical analysis](/source/Mathematical_analysis) may be performed on these data.

## See also

- [Accuracy and precision](/source/Accuracy_and_precision)

- [Computer science](/source/Computer_science)

- [Data analysis](/source/Data_analysis)

- [Empiricism](/source/Empiricism)

- [Epistemology](/source/Epistemology)

- [Informatics (academic field)](/source/Informatics_(academic_field))

- [Knowledge](/source/Knowledge)

- [Philosophy of information](/source/Philosophy_of_information)

- [Philosophy of science](/source/Philosophy_of_science)

- [Qualitative research](/source/Qualitative_research)

- [Quantitative research](/source/Quantitative_research)

- [Scientific method](/source/Scientific_method)

- [Statistics](/source/Statistics)

## References

- NIST/SEMATEK (2008) [*Handbook of Statistical Methods*](http://www.itl.nist.gov/div898/handbook/)

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