Dear all,I would be very grateful if somebody helped me answering the following question.. I'm looking at some categorical (naming accuracy) data with glmer, and I would like to use items as a random factor. I have 4 participants that name the items. The problem is that items vary across participants quite considerably, which leads to one third of the items being named only by 1 participant. I have heard that you need at least 2 subjects to  give a response on one item to be able to include this item into the random effect analysis. Is that right? And if it is, can I avoid this problem somehow?
Thank you very muchBest wishes,Anastasiya 		 	   		  
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