You want to test people's reactions to a new artificial sweetener, so you plan to give them coffee with two different kinds of sweetener.However, you are worried about possible cues you may give people as to which sweetener they're getting.To address this, you have your assistant prepare the packets, so she knows which is which, but you do not.You then give the two coffees to your subjects.This type of experiment is called a __________ experiment.
A) double-blind
B) single-blind
C) placebo effect
D) placebo bias

Question

Quizplus · Accepted Answer

In a double-blind experiment, neither the researcher nor the participants know which group is receiving the treatment or the control. In this scenario, the researcher is blinded to the type of sweetener being used since their assistant is preparing the packets, which addresses the issue of cueing. Additionally, participants do not know which type of sweetener they are receiving, making it a double-blind experiment.

You Want to Test People's Reactions to a New Artificial