Multiple Indicator Cluster Surveys Data Processing Workshop
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Transcript of Multiple Indicator Cluster Surveys Data Processing Workshop
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MICS Data Processing Workshop
Multiple Indicator Cluster SurveysData Processing Workshop
Creating Analysis Files:Description of Preparation Steps
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Secondary Data Processing Flow
Export Data from CSPRO
Import Data into SPSS
Recode Variables
Add Sample Weights, Wealth Index and GPS Data
Run Tables
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Importing Data to SPSS
– Executing syntax files created by CSPRO– In SPSS, run all my*.sps files (one by one)
• The my*.sps files will import the data into SPSS and create SPSS-format data files (system files - *.sav), with variable labels, value labels etc.
– At the end of each run, save your work in data files as hh.sav, hl.sav, wm.sav, mn.sav, ch.sav tn.sav, fg.sav, bh.sav, mm.sav
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Saving the Data File
• It is helpful to have the syntax file automatically save the data file that it creates
• To do so, add the following line to the end of the syntax file:
save outfile = 'hh.sav'.
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Run frequency distributions
• Open SPSS and run frequency distributions for all of the variables in all .sav files
• Detect any unexpected codes or inconsistencies, and if necessary, return to CSPro and make corrections.
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Next Steps
• Recoding variables– Creating new variables by recoding existing
variables– Adding variables to different levels
• Mother’s education• Father’s education
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Customize make*.sps
• Customize the make*.sps syntax files, in accordance with the contents of your questionnaires
• Take out any variables and associated syntax which are not included in your questionnaire, or modify the variables according to your response categories
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Run make.sps
• Run make.sps to recode all additional variables needed for the tabulations
• make.sps is provided as a batch file which calls and runs each of the make*.sps files in turn
• All *.sav variables will be replaced!• Backup before you proceed to this stage
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Next Steps
• Adding sample weights– Sample weights are added from weights
spreadsheet
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Calculate weights
• Obtain distribution of interview results by the unit based on which you intend to calculate unique sample weights:- using the weights_table.sps syntax file, if
calculation at cluster level- using the weights_table_alt.sps syntax file, if
calculation at stratum level, e.g. regions and area
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Calculate weights cont.
• Calculate final sample weights
• using weights.xls, if calculations are carried out at the cluster level
• weights_alt.xls, if calculations are carried out at stratum level
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Calculate weights cont.
• Once calculations in weights.xls or weights_alt.xls have been completed, save the “Output” workbook– c:\mics5\weights\weights.xls
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Append sample weights
• Append sample weights to the exported SPSS files hh.sav, hl.sav, wm.sav, ch.sav (tn.sav, fg.sav, bh.sav and mm.sav if relevant modules included), by using the SPSS weights_merge.sps or weights_merge_alt.sps syntax file
– Need customization if ITN, Birth History modules or Men questionnaire included
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Next Steps
• Adding wealth index– Wealth index calculated then added to files
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Customize wealth.sps
• Customize the wealth.sps syntax file that calculates wealth index values, together with the survey coordinator/technical manager, according to the items included in your questionnaire
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Run and append wealth
• Run the customized SPSS syntax wealth.sps to calculate and append wealth index values to all of the exported data files
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Next Steps
• Tabulation– Tables are generated from the *.sav files
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Customize each syntax
• Customize all tabulation syntax files in accordance with the contents of your survey
• Delete the syntax files which are used to obtain tables on topics which are not included in your survey
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Run all_tables.sps• Once all tabulation syntax files are customized and
free of errors, customize all_tables.sps
• all_tables.sps calls and runs all tabulation syntax files, and produces an output which includes all tables
• If any of the tabulation syntax files have errors, the program will stop and you will have to correct the tabulation syntax file. Then re-run all_tables.sps