double-blind sample

double-blind sample

[¦dəb·əl ¦blīnd ′sam·pəl]
(analytical chemistry)
In chemical analysis, a sample submitted in such a way that neither its composition nor its identification as a check sample is known to the analyst.
References in periodicals archive ?
We then calculated the predicted mean citations of the single-blind reviewed papers, using the coefficient estimates of the double-blind sample. That is, we assigned each explanatory variable a value equal to the mean value for the single-blind sample and calculated the predicted value of logged citations using the coefficient estimates of the double-blind sample.