Hello, I am confused by something and wonder if someone can help. With a task of 100 trials that are either TRUE or FALSE, where 80 are TRUE, what is the chance performance if a subject can respond "Yes" or "No"? Is this determined by the number of response options, or by the ratio of TRUE:FALSE?
I made a simulation that looks like it is 40% correct by chance and changes if the ratio changes (25% if 50:50), but was told flat out that chance is 50% by a friend who is better at math than me (because of the 2 response options). Who is right?
I made a simulation that looks like it is 40% correct by chance and changes if the ratio changes (25% if 50:50), but was told flat out that chance is 50% by a friend who is better at math than me (because of the 2 response options). Who is right?