After trying to memorize different types of furniture, you find you can retrieve the words chair, sofa, and couch much faster than sewing machine, wastebasket, and shelf. What might explain this? You are more likely to experience interference with sewing machine, wastebasket and shelf. Sewing machine, wastebasket, and shelf are presented first. You don't have a sewing machine, wastebasket, and shelf in your house. Chair, sofa and couch are much more typical of the category furniture than sewing machine, wastebasket and shelf