Just to clarify this entirely correct analysis: It's not a "peeking" error, it's a "stopping" error. As long as you decide on a minimum number of trials to mak

Just to clarify this entirely correct analysis: It's not a "peeking" error, it's a "stopping" error. As long as you decide on a minimum number of trials to make a decision, it's fine to look at the data as it is accumulating.