A comprehensive set of documentation products provides information about each NLS cohort. Most of these items are available in either HTML or PDF form through the "Documentation" link in the Investigator.
General documentation |
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NLS Web Homepage |
This internet site offers an overview of the NLS programs. |
NLS News |
NLS News, a quarterly newsletter, contains informative articles about the NLS data, announces the release of new data files, and reports any errors discovered in the data or documentation. Past issues of the NLS News are available on the NLS internet site. |
NLS Internet Bibliography |
This online searchable database provides citations for research using NLS data. |
Cohort-specific documentation |
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User’s Guides |
These cohort-specific guides help researchers understand NLS variables, survey instruments, documentation techniques, and other technical issues. |
Questionnaires |
A complete set of survey instruments from each survey year that allows researchers to view questions, supplemental information, and household interview forms. |
Codebook Supplements |
Supplementary attachments and appendices contain variable creation, description, and coding information not present in the questionnaire. |
Technical Sampling Report |
This manual and addenda describe the sampling procedure used to select the initial survey participants, including information about weights and standard errors. (not available for Original Cohorts) |
| Errata | A web page for each cohort lists changes or corrections to the data since the last release. |