The study was rigorously blinded, conducted under GCP guidelines and reported according to recommended methods.
In addition, at each of these home visits an interviewer (also blinded) conducted a face-to-face interview to identify, among other things, the type and frequency of cleaning and the last time cleaning was performed.
And as at most orchestras, affirmative action is difficult because auditions for new members are "blind" -- conducted behind a screen.
Methods: Controlled, randomized semi cross-over, single blind trial conducted at Bordeaux Universitary Hospital.
The proportion of blind ratings conducted may vary anywhere from < 10 to 100%, although a larger subset is preferable.
The utility of a new instrument for rapid virus quantitation, the Virus Counter, was evaluated in a blind study conducted at three sites.
This was a randomized, observer blind study conducted in the US, Hong Kong, Mexico, Thailand and Taiwan between October 2008 and March 2009.
Two double blind RCTs conducted evaluate the effect of R. rosea combined with other herbs on exercise performance [ 18, 21].
According to the CONSORT statement, people who were blinded after assignment to interventions and how the blinding was conducted should be all reported.
Those findings were confirmed in a subsequent randomized, placebo-controlled, double-blind study conducted on 42 patients [154].
It is a 5-year, randomized, double-blind trial, conducted against placebo in 27 countries on 16,496 T2D patients.
