When neither the participants nor the experimenters know which group has received the treatment and which has received a placebo, the design is called

Question

​When neither the participants nor the experimenters know which group has received the treatment and which has received a placebo, the design is called

Quizplus · Accepted Answer

The design described is a double-blind experiment, where both the participants and experimenters are unaware of which group has received the treatment or the placebo. This helps to eliminate bias and ensure accurate results. Confounding refers to the presence of extraneous variables that may affect the results. Correlational designs are used to study the relationship between variables without manipulating them, and naturalistic observations involve observing behavior in its natural environment without any manipulation.

​When Neither the Participants nor the Experimenters Know Which Group

When Neither the Participants nor the Experimenters Know Which Group