|  |  |  |  |  |  |  |  |  |  |  | 
   
    | n | McClure/Lankes
    et. al. - Assessing Quality in 
 | 
   
    |  | 
   
    |  | Digital Reference 
 |  | 
   
    |  | 
   
    |  | q | Number of digital
    reference questions received 
 |  | 
   
    |  | 
   
    |  | q | Number of digital
    reference answers 
 |  | 
   
    |  | 
   
    |  | q | Number of
    questions received digitally but not 
 |  | 
   
    |  | answered or
    responded to by completely digital 
 |  | 
   
    |  | 
   
    |  | means 
 |  | 
   
    |  | 
   
    |  | q | Digital reference
    correct answer fill rate 
 |  |