00:01
A double -blind experiment would be used for all of these except a, to minimise changes in the subject's behaviour, caused by the experimenter's actions, b, to minimise research bias, to c, eliminate the need for assigning participants randomly, or d, to control for research participant bias.
00:20
Okay, the correct answer is c, eliminating the need for randomly assigning participants, because you have to do that anyway.
00:28
Double blind, so let's go through that.
00:30
That blind is where the participants don't know which group they are in.
00:37
So this means that that controls for their bias.
00:42
Double blind is just like blind, except the researchers also don't know which group people are in...