| Characteristics |  
   N |  
   Mean rank |  
   Rank sum |  
   Z |  
   p-value |  
  
 
   
   | Speed of paper-and-pencil test performance |  
   1st group |  
   20 |  
   26.10 |  
   522.00 |  
   -2.444 |  
   0.015 |  
  
 
   
   | 2nd group |  
   50 |  
   39.26 |  
   1963.00 |  
  
 
   
   | Concentration attention index of paper-and-pencil test |  
   1st group |  
   20 |  
   24.10 |  
   482.00 |  
   -2.964 |  
   0.003 |  
  
 
   
   | 2nd group |  
   50 |  
   40.06 |  
   2003.00 |  
  
 
   
   | Speed of computer-based test performance |  
   1st group |  
   20 |  
   45.78 |  
   915.50 |  
   -2.671 |  
   0.008 |  
  
 
   
   | 2nd group |  
   50 |  
   31.39 |  
   1569.50 |  
  
 
   
   | Concentration attention index of computer-based test |  
   1st group |  
   20 |  
   28.65 |  
   573.00 |  
   -1.781 |  
   0.075 |  
  
 
   
   | 2nd group |  
   50 |  
   38.24 |  
   1912.00 |