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{{Short description|Questionnaire used in clinical research}}

A '''Data Clarification Form''' (DCF) or Data Query Form (DQF) is a questionnaire specifically used in [[Clinical trial|clinical research]]. The DCF is the primary data clarification tool from the trial sponsor or Contract Research Organization (CRO) towards the investigator to clarify discrepancies and ask the investigator for clarification. The DCF is part of the data validation process in a clinical trial.

{{more footnotes|date=October 2012}}

A '''Datadata Clarificationclarification Formform''' ('''DCF''')<ref>{{cite or journal|doi=10.4103/0253-7613.93842|pmid=22529469|title=Data Querymanagement Formin (DQF)clinical research: An overview|journal=Indian Journal of Pharmacology|volume=44|issue=2|pages=168–72|year=2012|last1=Krishnankutty|first1=Binny|last2=Naveen Kumar|first2=BR|last3=Moodahadu|first3=Lathas|last4=Bellary|first4=Shantala|pmc=3326906 |doi-access=free }}</ref> or '''data query form''' is a questionnaire specifically used in [[Clinical trial|clinical research]]. The DCF is the primary data clarification tool from the trial sponsor or Contract[[contract Researchresearch Organizationorganization]] (CRO) towards the investigator to clarify discrepancies and ask the investigator for clarification. The DCF is part of the data validation process in a clinical trial.

In clinical trials, the data validation step and asking the investigator for clarification of discrepancies (data cleaning) is an important step towards creating a clean dataset suitable for [[Statistics|statistical]] analysis of the clinical trial outcome.

== See also ==

{{div col|colwidth=22em}}

* [[Case report form]]

* [[Clinical data acquisition]]

* [[Clinical research associate]] (CRA)

* [[Clinical trial]]

* [[Clinical trial protocol]]

* [[CaseDrug Report Formdevelopment]]

* [[Electronic Datadata Capturecapture]]

* [[Patient-reported outcome]]

{{div col end}}

* [[Clinical data acquisition]]

* [[Electronic Data Capture]]

* [[Clinical research associate]] (CRA)

* [[Drug development]]

== References ==

<references />

* Celine Clive (2004), ''Handbook of SOPs for Good Clinical Practice'', CRC, ISBN 0-8493-2181-6

== External links==

* [http://www.med.umich.edu/cacr/dictionary/D-F.htm DCF entry in Clinical Research Dictionary]

== Further reading ==

[[Category:clinical research]]

:* Celine Clive (2004), ''Handbook of SOPs for Good Clinical Practice'', CRC, {{ISBN |0-8493-2181-6}}

[[Category:Clinical Data Management]]

== External links==

* [https://web.archive.org/web/20051121200321/http://www.med.umich.edu/cacr/dictionary/D-F.htm DCF entry in Clinical Research Dictionary]

{{healthSci-stub}}

[[Category:clinicalClinical research]]

[[Category:Clinical Datadata Managementmanagement]]