You want to test people's reactions to a new artificial sweetener,and 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.So,you have your assistant prepare the packets so she knows which is which but you do not,and then you 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 experimenter nor the participants know which group is receiving the experimental treatment and which group is receiving the control. In this case, the assistant knows which sweetener is in which packet, but the experimenter does not, ensuring that there are no unintentional cues or biases influencing the results.

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