Data Processing
Data Editing
The data processing of LFS was organized at two levels. Data editing and validation, computer processing and preparation of tabulations being undertaken centrally at the NSO, while manual editing and coding, key entry and verification were undertaken at the provincial level. Checking the completeness of questionnaires, coding of questionnaires, range edit checks, simple consistency edits and electronic transfer of the keyed in data to the NSO were undertaken at the provincial level. The NSO computer staff were familiar with the IMPS software developed by the US Bureau of the Census and this software had been used both in population census and survey processing. Thus, LFS data entry programmes were prepared using IMPS and for range and consistency checks the CONCOR module was used.
Other Processing
For tabulation process used SPSS. After data processing the WG together with the Consultant made statistical analysis on selected indicators, compared some results with the ones of other surveys and census, data consolidation, error corrections etc. were undertaken. The sampling errors of selected estimates were computed using CENVAR module in the IMPS package.
