I meant to post this in the Stats Forum, not the "research" one.
My apologies.
Got this off Twitter (@galka_max) and found it interesting:
If you choose an answer to this question at random, what is the chance you will get it correct?
A) 25%
B) 50%
C) 60%
D) 25%
I meant to post this in the Stats Forum, not the "research" one.
My apologies.
How do you define "correct"?
If an answer is chosen at random, then each option has a 25% chance of being selected. If, then, there is a single option of 25% that is keyed as correct, the question is consistent: There is an answer such that the probability of selecting it randomly is the same as the displayed percentage, and that answer is keyed as correct.
But in the displayed question, A and D are both 25%, which screws things up. If A was keyed as correct, would D be too?
Matt aka CB | twitter.com/matthewmatix
It doesn't actually specify what probability distribution would be used to choose "at random". One could make a case for almost any answer.
I don't have emotions and sometimes that makes me very sad.
Good point, assumed uniform.
Matt aka CB | twitter.com/matthewmatix
People need to stop with the assumption of random = uniform! Stop this madness!
for all your psychometric needs! https://psychometroscar.wordpress.com/about/
Maybe fifty percent.
Last edited by Whitney1; 10-02-2017 at 10:53 PM.
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