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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Research, Technology, Methods > methodology > research methods > experimental design > placebos
Preferred Term:

placebos

Definition:
Any dummy medication or treatment. Although placebos originally were medicinal preparations having no specific pharmacological activity against a targeted condition, the concept has been extended to include treatments or procedures, especially those administered to control groups in clinical trials in order to provide baseline measurements for the experimental protocol.
Concept Schemes:
NALT Full
NALT Core
Broader Concept:
experimental design
Related Concepts:
Entry Terms:
  • sham treatment
URI:
https://lod.nal.usda.gov/nalt/26922
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2015-03-09
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