blinded experiment

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blind·ed ex·per·i·ment

(blīnd'ed eks-pĕr'i-ment)
An investigation in which information is withheld from the subject, the researcher, or both, in order to minimize the risk of bias.
See also: double blind experiment; single blind experiment
References in periodicals archive ?
First, we've been able to take a known enzyme and, in a blinded experiment with one of our scientists, have him employ ACTT(SM) to identify the actual substrate of that enzyme.
His doctor has told him that the study will be a well designed, controlled and blinded experiment, and that John has a 50-50 chance of receiving the active drug or a "sham" treatment which is being tested for comparison.
Blinded experiments using both animal models showed that pretreatment with meclizine dramatically reduced ischemic damage to cardiac cells in the heart attack model and to brain cells in the stroke model.