1. A research method in which the participant does not know whether they are receiving the experimental treatment or a placebo, reducing bias in the results
The pharmaceutical company conducted a blind study to test the effectiveness of the new drug.
A empresa farmacêutica realizou um estudo cego para testar a eficácia do novo medicamento.
2. An experimental design where the subjects are unaware of the hypothesis being tested to prevent expectancy effects
In a blind study, participants cannot guess the purpose of the experiment.
Em um estudo cego, os participantes não conseguem adivinhar o propósito do experimento.