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pdf Changes to Wave 2 Data from version 2 to version 2 1

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Changes to Wave 2 Data from version 2 to version 2.1.pdf

 

An Admin dataset has been included in the regular pack for Wave 2, instead of having it as a separate item to download. The result is that there is a new version of Wave 2 available. Other minor changes have been made as we corrected small issues brought to our attention since the previous release. This document outlines the specifics of the changes between Version 2.0 and Version 2.1.

 

 

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pdf Changes to Wave 2 Data from version 2.1 to version 2.2

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Changes in W2 Data from V2.1 to V2.2.pdf

 

The Census 2011 geographic variables have been included in this new release. This has resulted in a change in the weights. See document for details.

 

 

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pdf Changes to Wave 2 Data from version1.0 to version 2.0

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Wave 2 differences from version 1 to 2.pdf

 

Changes were made to both the Wave 1 and Wave 2 datasets during the production of Wave 3. Wave 1 and Wave 2 cleaning of the data has been on-going since the previous release of the data. We paid special attention to key variables, such date of birth, gender, population group and highest education, as well as the birth history section and questions about parent vital status (are they alive or dead) in Wave 3. Where there was a discrepancy across waves we did callbacks to confirm what the correct answer is. Were we have learned that either Wave 1 or Wave 2 was incorrect we updated the data in those datasets to reflect the correct information. In some cases this has resulted in questionnaire type changes due to changes in dates of birth. In other cases we have had to update the CSM/TSM tag for new children as we learned either their real date of birth or where we learned that their mother was interviewed as a TSM in Wave 2.

During Wave 3 fieldwork we also learned about more cases were we had duplicate households from Wave 1 or where people were interviewed in more than one household and incorrectly presented as two separate records. The second scenario was especially prevalent in Wave 2. In extreme cases we also learned of people being incorrectly recorded as deceased in Wave 2 when they are still alive.

 

 

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pdf NIDS Wave 2 Overview Document

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NIDS_booklet_web_download.pdf

The National Income Dynamics Study (NIDS), South Africa’s national panel study, has
been running since 2006, when the government commissioned the Southern African
Development Research Unit at the University of Cape Town to undertake the project.
The first wave (survey round) was undertaken in 2008. The preliminary results of Wave
2, undertaken in 2010, are presented in this brochure.
 
The National Income Dynamics Study (NIDS), South Africa’s national panel study, has been running since 2006, when the government commissioned the Southern AfricanDevelopment Research Unit at the University of Cape Town to undertake the project.The first wave (survey round) was undertaken in 2008. The preliminary results of Wave2, undertaken in 2010, are presented in this brochure.
 
 
 

pdf NIDS Wave 2 User Guide - updated

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NIDS-W2UserGuide-PublicRelease20140228_V2.1.pdf

 

 

This manual serves as an overview to help users understand the methodology employed to collect data and some of the technicalities regarding the more complex aspects of the data.  As such, the User Manual is a reference tool for users. The detailed contents page can be used as an index to guide users to appropriate pages for themes of interest. This document accompanies the release of the Wave 2 data. 

 

 

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pdf NIDS Wave 2 User Manual - Updated

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NIDS-W2UserGuide-PublicRelease20150330_v2.3.pdf

This manual serves as an overview to help users understand the methodology employed to collect data and some of the technicalities regarding the more complex aspects of the data.  As such, the User Manual is a reference tool for users. The detailed contents page can be used as an index to guide users to appropriate pages for themes of interest. This document accompanies the release of the Wave 2 data. 

 

 

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pdf Wave 2 differences from version 2 to 2 1

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Wave 2 differences from version 2 to 2.1.pdf

pdf Wave 2 Secure Variables

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Wave 2 Secure Variables.pdf

 

In addition to the public release dataset, SALDRU also prepares an internal dataset that includes the full geo-coding, employment coding and PSU information. The Secure Datasets include text variables as they are captured in the questionnaire. Where possible, coded or aggregated information is released as part of the public release dataset, e.g. employment and sector codes to the one-digit level. This document gives the details of the additional variables in the Secure dataset.