I am wanting to know whether it is possible to randomise the presentation of pictures contained within an event list. I have five different trial types, that consist first of an instruction screen, and are then all linked to a list of stimulus pictures (to which participants respond using two different keys). The list contains 420 pictures, and I want each participant to see each image once in random order.
Is there a way to randomise the presentation of the stimuli within his list?
Thanks in advance.