##  [Double-Blind Study](/double-blind-study) 

  ##  [Double-Blind Study](https://health.quantumdictionary.io/double-blind-study-0) 

  

 [![Health & Life Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Health%20%26%20Life%20Sciences.png.webp?itok=yyyaiQOY)](/topic-specific-dictionaries/health-life-sciences)



**Health & Life Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A study design in which neither participants nor investigators who deliver the intervention or assess primary outcomes know which intervention each participant receives, with blinding procedures specified; intended to reduce performance and ascertainment bias arising from expectations or differential behavior.