Purpose

This SOP serves as a guide WRAP coordinators and data entry staff.  Missing and incomplete data must be identified and coded uniformly to ensure documentation, data entry, and data analysis consistency.  When missing or incomplete data is identified, the data codes below should be written into the applicable section of the codebook by WRAP coordinators.  WRAP data entry staff should ensure accuracy and can approach WRAP coordinators with any questions.

Data Codes

• 888
  Data not valid.  This includes due to tester error or if a test was started and not finished (the participant abandoned the test).   Please review if CQV is needed.
  
  
  • Example: Participant completes 4 trials of AVLT.  The 5th trial would be marked '888'.
    
    
  • Example: Tester fails to administer trial 5 of AVLT.
    
    
  • Example: Tester fails to start stopwatch until 30 seconds have passed during CFL.
    
    
    Note: An explanatory comment should be entered by tester on BOC describing the reason for the tester error or abandonment.
    
    
    
• 999
  No data obtained.  Data is missing  This includes if a participant decline a test, or a test did not happen.
   
  • Example: Participant declines to complete Logical Memory
    
    
  • Example: Tester stops testing after a test as participant is distressed. The rest of the battery would be marked as "999."
    
    Note: An explanatory comment should be entered by tester on BOC describing the reason the data was not collected.
    
    
  • Special Example:(B12 can have a value of 999, so missing data is 9999)

Historical Data Codes

• 777
  Data is not back yet.  Information was requested but not yet returned (IQs)

• 666
   Information under Review (CDR)

Document History