| Critical
              Thinking Principles | Principle Groups | 
          
            | Logical
                possibility   
             |  1 - 2 | 
          
            | Physical
                possibility   
             |  3 - 4 | 
          
            | Personal
                experience   
             |  5 - 6 | 
          
            | Belief
                vs. knowledge   
             |  7 - 9 | 
          
            | Background
                information   
             |  10 - 11 | 
          
            | Evidence
                / experts for claims   
             |  12 - 15 | 
          
            | Objective
                reality   
             |  16 - 18 | 
          
            | Scientific
                method / hypotheses   
             |  19 - 21 | 
          
            | Criteria
                of adequacy for hypotheses   
             |  22 - 26 | 
          
            | Surprise
              Principle |  27 | 
          
            | Major
              Forms of Reasoning | Sections | 
          
            | Deductive
              Arguments |  1 | 
          
            | Non-Deductive
              Arguments: Induction | 2 | 
          
            | Non-Deductive
              Arguments: Abduction | 3 | 
          
            | Non-Deductive
              Arguments: Analogy | 4 | 
          
            | What
              Is an Argument? |  5 |