Question

A study is created in which the participants of the study are unaware who received the treatment and who did not. Which element of the experimental design is known to be a part of this study?
1)blinding
2)replication
3)randomizing

Answer 1

The element of the experimental design described in your question is **1) blinding**. In a study where participants are unaware of whether they received the treatment or not, it is referred to as a blinded study. This helps reduce bias in the results.