Understanding "Missing" in IP data
When I read the Understanding Society IP User Guide, it was mentioned that -9 is assigned to data that are missing by error. Can I understand the term "missing by error" as processing error or error that is not caused by the respondents?
Updated by Redmine Admin over 9 years ago
- Category changed from 8 to Data documentation
- % Done changed from 0 to 50
System missing are coded to -9 in the data processing and recoded to missing value codes if this can be infered from response mode, proxy interviewing status, non-adult age range or whether the respondent belonged to the 'universe' of an item, e.g. some items are only asked of mothers or those in full time employment, etc.