Recent content by ltuff1

It is certainly a real-world question. What I'm really trying to calculate is the likelihood that a subject is performing statistically below chance where chance should be the worst you could do if you knew nothing about the correct answers. On a typical forced choice task like this where there...

You're probably right. My first take on this was certainly that it's simply 27 independent trials with the same 50:50 chance on each one. It just seems off that the subject can say 'no' 27 times and then get 2/3 of them right. In practice as well the subjects tend to respond 'no' when unsure. I...

Okay, so say a subject responds to the 27 trials of this yes/no task and gets 10 correct (there is a correct or incorrect response to each yes/no trial, 9 being in the yes direction, 18 in the no direction - so say he says 'yes' correctly 4 times and 'no' correctly 6 times, choosing the wrong...

Title pretty much summarizes it. I know I can use the binomial distribution to calculate the chance of equal to or fewer than a certain number correct on a yes/no task where there's a 0.5 probability of being right on any trial. But what if you have 27 Yes/No trials where Yes is the correct...