triple-blind

Definitions

adjective Describing an experiment (usually medical) in which the identity of those repeating different treatments is kept secret from the subjects, the administrators, and the statisticians analysing the data until the outcome of the experiment is known.

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An observational study is sort of a triple-blind study.

Observational studies | The Blog of Michael R. Eades, M.D. 2009
In a triple-blind study, in which neither patients nor practitioners knew that a study was in progress, there was an almost threefold greater survival at fifteen months for the children who were prayed for, compared with those who were not prayed for.

The Best Alternative Medicine Dr. Kenneth R. Pelletier 2000
In a triple-blind study, in which neither patients nor practitioners knew that a study was in progress, there was an almost threefold greater survival at fifteen months for the children who were prayed for, compared with those who were not prayed for.

The Best Alternative Medicine Dr. Kenneth R. Pelletier 2000
Sisley's study would be triple-blind and placebo-controlled, meaning none of the researchers or veterans would know who's getting high and who isn't.

Wired Top Stories Katie Drummond 2011
If you’re looking for visually impaired persons, or the condition of being blind, but just enter “blind,” you get 150,000+ citations, b/c it picks up double-blind, triple-blind, etc.

davidrothman.net » Disagreeing with a PubMed Instructor about MeSH 2007