2. Manual Data Processing of Census Data 2004 Population and Housing Census Statistics Sierra Leone Thekeka Moses Conteh Sierra Leone

4. Population Figures of Sierra Leone YearPopulation 19632,180,355 19742,735,159 19853,515,821 20044,976,871

5. Administrative Division Administrative BlocksNumber Region/Province4 District14 Chiefdom166 Sections1,321 Enumeration Area9,673 Localities16,734

6. FINAL FIGURES OF 2004 CENSUS Total Population 4,976,871 Males 2,420,218 Females 2,556,653 Household Population 4,930,532 Special Groups Population 46,339 Enumeration Area 9673 Total Number of Households 819,854 Average Household Size 6.0

7. Planning Office and Equipment / Accessories Personnel Scheduling and timing Budgeting

8. Office Preparation / Installations Server Room Data Entry and Verification Room Coding Room Store Room Installation Power supply Air conditioners specifications Specifications for computers, printers, backup systems etc. LAN with star topology.

9. Recruitment and Training of Personnel Data Processing Consultant 1 Census Database Manager 1 Census IT Manager 5 Coding Supervisors 4 Verifying Supervisors 12 Data Entry Supervisors 50 Coders 40 Verifiers 120 Data Entry Operators

10. Receiving and Batching 5 Coding Supervisors To receive the questionnaires from logistics office on behalf Census Data Processing Unit To batch the census questionnaires in EA order in the store for processing

11. Programming (a) Main Application SOFTWARE The Integrated Microcomputer System (IMPS) developed by US Bureau of the census – is a system for entry, editing, tabulation and management of census and survey data. MODULES Data Dictionary (DATADICT) Data Entry (CENTRY) Data Edit And Imputation (CONCOR) Publication Tabulation (CENTS) Quick Tabulation (QUICKTAB) Table Retrieval (IRS) Variance Calculation (CENVAR) Data Entry Control (CENTRACK) Utilities Quit

12. Programming (b) IMPS – Design of data structures – Data Capture – Verification – Validation – Tabulation Other SOFTWARE – SPSS WIN Version 12.0 – MS ACCESS

13. Training Coders Verifiers Data Entry Operators

14. Operations (a) Coding AprilMayJuneJulyAugSepOctNovDecJanFeb 10% Sample The Rest Re-batching

15. Operations (b) Data Entry / Verification / Validation / Back up / Tabulations 10% Sample The Rest JuneJulyAugSepOctNovDec

16. Primary Data Processing Flow Main Data Entry Structure Check Verification Data Entry Backup Raw Data Secondary Editing Backup Final Data

17. Secondary Data Processing Flow Export Data from IMPS Import Data into SPSS Set up a Tabulation Plan Run Tables with IMPS and SPSS

18. Creation of Census Databases Population Housing Ownership Agriculture Deaths DBMS MS-Access

19. Dissemination of Census Information CDs Internet Monographs

20. Challenges with Manual Entry Duplication of EA codes and household numbers The use of F2 key in IMPS to force values that are out of range. Transposition errors were prominent Incomplete entry of household records Incomplete entry of modules Data Verification was not effective.

21. Benefit of Manual Data Entry Approach Build institutional capacity by the purchase of more microcomputers which can be used for other activities after the census. Creates employment facility and training for more people. Data can be easily identified and keyed. Inconsistent data can be identify and resolved before keying. Relatively less expensive Data was processed within reasonable period of eight months.

22. Thank You