Glossary entry (derived from question below)
English term or phrase:
control trial
English answer:
trial means experiment in this context. From the Dictionary of Optometry and Visual Science: trial, randomized controlled (RCT)
English term
control trial
Level 2: statistically insignificant, randomized, control trials (double-blind studies) or meta analysis.
(American Heart Association’s classification on the levels of evidence for the efficacy of medical devices)
i’ve tried on the internet resources but still don’t get it at all.
Thanks all in advance. .
| 5 +3 | trial means experiment in this context, see below |
Stephanie Ezrol
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| 4 +1 | type of scientific experiment used in testing the efficacy or effectiveness of healthcare services |
Yasutomo Kanazawa
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| correct is: controlled |
MMUlr
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Oct 20, 2009 21:51: Stephanie Ezrol Created KOG entry
Oct 20, 2009 21:52: Stephanie Ezrol changed "Edited KOG entry" from "<a href="/profile/1092290">Stephanie Ezrol's</a> old entry - "control trial "" to ""trial means experiment in this context""
Oct 20, 2009 21:54: Stephanie Ezrol changed "Edited KOG entry" from "<a href="/profile/1092290">Stephanie Ezrol's</a> old entry - "control trial "" to ""trial means experiment in this context. From the Dictionary of Optometry and Visual Science: trial, randomized controlled (RCT) ""
Responses
United States
French to English, English to English
Native in: English
Works in: English, French to English, French Middle (ca.1400-1600) to English
trial means experiment in this context, see below
trial, randomized controlled (RCT)
An experimental design used for testing the effectiveness of a new medication or a new therapeutic procedure. Individuals are assigned randomly to a treatment group (experimental therapy) and a control group (placebo or standard therapy) and the outcomes are compared. The trial is strengthened by 'blinding' or masking (single-blind, double-blind or triple-blind study) and cross-over design. RCT is the most accepted scientific method of determining the benefit of a drug or a therapeutic procedure. It represents the best evidence available, which is integrated into the final decision about the management of a condition by healthcare practitioners in what is called evidence-based healthcare. Syn. randomized clinical trial. See sampling; significance; study.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
| agree |
Expialidocio (X)
: yes, a trial that uses a control group to compare results
1 hr
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| agree |
kmtext
1 hr
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| agree |
Rolf Keiser
5 hrs
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Japan
Scientia est potentia
Native in: Japanese 
Works in: English to Japanese, German to Japanese, Italian to Japanese, and 3 more.
type of scientific experiment used in testing the efficacy or effectiveness of healthcare services
Or clinical trial, as a synonym.
http://www.thefreedictionary.com/Randomized controlled trial
Reference comments
correct is: controlled
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Note added at 3 hrs (2009-10-15 14:22:40 GMT)
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Angela suggested it already! ;-)
| agree |
Lirka
: meaning there is an experimental group and a control group
8 hrs
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Discussion
"control trial" should specifically indentify the control part of the study; i.e. the one involving placebo/nothing/absence of change (accordingly to the experimental protocol)
instead
"controlled trial" should define a study that is (as usually it is) made of an experimental section and of a control section.
But looking around it seem that now controlled/control trial are used as they have the same meaning: a study that comprises both experimental and "sham" trials.