setting a performance criterion

[craigrl]

Hello, I am trying to design an experiment in which participants will have to continue making categorisations until they have reached a certain level of performance (93.75% correct) or until they have completed 100 trials - which ever comes first. I wondered if this was possible and if so, how I would go about setting such a performance criterion?

Many thanks,
Rebecca

[craigrl]

Hi again, I am still trying to set up a performance criterion using direct RT - is anyone able to offer some assistance?

Rebecca Craig