text: You will be shown several examples of geometric objects.
  Your task is to learn a rule that allows you to tell whether an object belongs to the M or C category.
  For each presented object, you will be asked to make a category judgment by pressing the corresponding key and then you will receive feedback.
  You will encounter four different problems with different rules.
  
  You encounter a new problem with a new rule determining which objects belong to each category:
  You see a small white triangle. You press <<C>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is C.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is M.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<C>>. The correct category is M.
  You see a big white triangle. You press <<M>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is M.
  You see a big black triangle. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a big white triangle. You press <<M>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<C>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  
  You encounter a new problem with a new rule determining which objects belong to each category:
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is M.
  You see a big white square. You press <<C>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<C>>. The correct category is M.
  You see a big black square. You press <<C>>. The correct category is M.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<M>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<M>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is C.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is M.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<M>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  
  You encounter a new problem with a new rule determining which objects belong to each category:
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  
  You encounter a new problem with a new rule determining which objects belong to each category:
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<M>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is M.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small white triangle. You press <<C>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<M>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<M>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<M>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black square. You press <<C>>. The correct category is M.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<M>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<C>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black triangle. You press <<C>>. The correct category is C.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a small white square. You press <<M>>. The correct category is M.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a big white triangle. You press <<C>>. The correct category is C.
  You see a small black triangle. You press <<C>>. The correct category is C.
  You see a big black square. You press <<M>>. The correct category is M.
  You see a small black square. You press <<C>>. The correct category is C.
  You see a big white square. You press <<M>>. The correct category is M.
  You see a small white triangle. You press <<M>>. The correct category is M.