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Group: Forum Members
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Dear all,
I am creating a typical face recognition task but I have been facing the following problem:
My participants first study 40 different faces (identities) and then have to recognize all 40 faces from a picture that is either in Type-A or in Type-B. Therefore, if a face (identity) is presented during recognition in Type-A, it should not be presented in Type-B. I want the distribution of the two picture types to be equal but random.
My idea was to create two different lists, one for picture Type-A and one for picture Type-B. But I do not know how to arrange it so that the same face(identity) does not appear twice. Can someone explain how I can make this happen considering that the picture names will naturally have to differ (20_m_sf.jpg. vs. 20_m_ff.jpg). Also, note that the type of picture when studying the face is different than both Type-A and Type-B.
Thanks a lot!
Anna
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