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Concepts & Categories (Natural Categories (Characteristics (Fuzzy sets…

- - - - Unclear whether in or out of category
      - McCloskey & Glucksberg (1978)
        
        P's decide on category
        
        Some examples not so clear-cut
    - - Wittgenstein (1953)
        
        "Game"- no attributes shared by all members
      - No single attribute is shared by all
    - - Rosch & Mervis (1975)
        
        7 point typicality scale
        
        Typicality and family resemblance
        
        High family resemblance= more typical
        
        Prototype
  - - - Most informative
      - economically expressed
- - - - 81 possible cards feat. shapes, colour, borders
    - - Features combined arbitrarily
- - - - New instances compared with prototype
    - - Compare with many members of category
  - - - Pizza vs coin
    - - You need a theory
    - - Grey hair vs clouds