double-blind study with crossover meaning, double-blind s... | English Cobuild dictionary

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double-blind

  
  
A double-blind study or experiment compares two groups of people, one of which is being tested while the other is not. Neither the people doing the testing nor the members of the two groups know which group is being tested.      adj  
In a double-blind trial, there were definite improvements.     
Translation English - Cobuild Collins Dictionary  
Collaborative Dictionary     English Cobuild
n.
the study of human action and conduct
n.
a field of study searching for ways to prevent global warming by deliberately changing Earth's natural system
n.
1. the art of public speaking in which gesture, vocal production, and delivery are emphasized 2.the study of formal speaking in pronunciation, grammar, style, and tone.

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"Collins Cobuild English Dictionary for Advanced Learners 4th edition published in 2003 © HarperCollins Publishers 1987, 1995, 2001, 2003 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"