double-blind test

Noun

 * 1)  A form of scientific testing in which some information is withheld from two different parties. Most commonly, neither the tester nor the subjects tested know which are the control items and which are the test items.

Translations

 * Chinese:
 * Mandarin: 雙盲實驗
 * Finnish: kaksoissokkotesti
 * French: étude en double aveugle
 * Polish: podwójnie ślepa próba
 * Portuguese:
 * Russian: двойно́й слепо́й ме́тод
 * Spanish: experimento a doble ciego