For my dissertation I'm working with the International Affective Picture System (IAPS). The IAPS is a set of pictures that are divided in to categories based on valance and arousal. For my paradigm I am having participants sort the pictures into one of three categories (Pleasant, Neutral, Unpleasant). As of now the pictures appear in a random order, but I need to make sure the participants aren't shown more than 2 pictures from the same category in a row (e.g. Pleasant, Pleasant, Pleasant). Any ideas on how to ensure this doesn't happen?
Thanks in advance for any help!
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