Nigeria - General Household Survey-2007, Fourth Round

The data editing is in 2 phases namely manual editing before the questionnaires were scanned.
This involved using editors at the various zones to manually edit and ensure consistency in the information on the questionnaire.

The second editing is the computer editing, this is the cleaning of the already scanned data by the subject mater group.
The questionnaires were processed at the zones. On completion, computer editing was also carried out to ensure the integrity of the data. .

The data processing analysis involved Six main stages:
Development of data scanning scren.
Training of data processing staff.
Manual editing and coding.
Data entry and scanning comminting into a data base in SPSS.
Computer editing.
Verification and conversion

The table were then generated usining SPSS.