I am a new graduate student, designing my first experiment. Here is what I’d like to do:
Present a face, a mask, and another face
Participant will assess/respond same/different
I would like correct/incorrect and response time.
I would like to present 24 practice trials with feedback, and then 3 blocks of 80 trials for experiment.
I have 24 original faces of each gender; those 24 faces have been altered in two different ways, creating three different conditions.
The trials must be randomized, but presented same gender (i.e. male - mask - male or female - mask - female, not female - mask - male or vice versa).
I have managed to set up the instructions and a block in which a face, the mask and a second face are presented; however the face is always the same face/same condition, so always a “same” presentation.
thank you in advance for any help you can provide