Psychologists and epidemiologists would agree that which type of study is the most desirable design, the "gold standard" of scientific research?

Question

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Randomized placebo-controlled double-blind trials are considered the gold standard in scientific research as they provide the highest level of evidence for causality. This type of study design involves randomly assigning participants to either a treatment or placebo group, while both the researchers and participants are unaware of which group they are in (double-blind). This minimizes bias and allows for accurate analysis of the treatment's efficacy.

Psychologists and Epidemiologists Would Agree That Which Type of Study