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Results for: category:"frequent" (20)
| 20 results found, sorted by title | score using date |
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| How are data distributed by your archive cited? Data distributed by should be cited appropriately. For more detailed information, please see Citing Electronic Data Files | 2009-01-27 | |
| How can I archive crime or criminal justice data that I have collected? If you are an NIJ grantee, please see I am a National Institute of Justice (NIJ) grantee and I am required to archive my data after I have finished my project. What do I need to do to fulfill this requirement? All ... | 2007-08-17 | |
| How do I build SAS, SPSS, or Stata datasets (from ASCII data and setup files)? Setup files (also known as control cards or data definition statements) contain the syntax or program code to read columnar ASCII data into a statistical package. For detailed instructions on how to use SAS, SPSS, ... | 2009-06-18 | |
| How do I decompress the files I download from your site? files distributed via the Internet were compressed using Windows Zip data compression software. Files compressed using WinZip have the .zip file name extension. Users who download compressed files will have to ... | 2009-06-17 | |
| How do I find data referenced in a journal as being available at your archive? You may search our holdings by title, principal investigator, or other information related to the data. | 2009-06-17 | |
| How do I find data that I can use for my research project? The Data Access page allows you to search our data holdings in a number of different ways, including by keyword, title of data collection, and name of principal investigator. The page also gives you several options ... | 2007-01-10 | |
| How do I know how much space a particular file will require? The size of each uncompressed file in kilobytes will be found on the file manifest, and the size of your total download is listed in the View Cart screen and on each download page. Many data files are 100 megabytes ... | 2008-08-29 | |
| How do I obtain a data collection from NACJD? Most NACJD data collections can be freely downloaded from our web site. Information about how to download data and documentation can be found in the Help section of this web site or users can contact NACJD staff ... | 2007-01-10 | |
| How do I obtain data from the Restricted Access Archive? In order to ensure respondent confidentiality, certain sensitive data collections are available only through a restricted access archive. While these data are still available free of charge, users must specifically ... | 2007-08-21 | |
| How does your archive prepare a data collection for public release? staff has established a series of steps for acquiring and archiving each new data set. In particular, each study is assessed to determine if any issues of respondent confidentiality exist and checks are made for ... | 2007-01-10 | |
| I don't want to run my own statistics. Where can I get reports or statistics that have ... NACJD does not generally archive, produce, or distribute published reports, charts, or other analyses based upon data holdings. Users interested in published reports can search our online publications bibliography ... | 2007-08-17 | |
| I'm using SPSS on a Mac. I can't read ASCII data files using the SPSS setup file I ... SPSS for Macintosh, Version 6.1.1 and earlier versions, do not recognize UNIX linefeed characters. Macintosh users must change these characters manually before reading the file into SPSS. We suggest using a text ... | 2008-08-29 | |
| What are setup files? Many data collections that contain ASCII data files are accompanied by setup files that allow users to read the text files into statistical software packages. Since a visual interpretation of alphanumeric data ... | 2009-06-18 | |
| What is OSIRIS and what is an OSIRIS dictionary file? Developed in the 1960s and 1970s at the Institute for Social Research (The University of Michigan), OSIRIS was a software package created to manage and analyze social science datasets. OSIRIS dictionaries were ... | 2007-02-13 | |
| What is a PDF file? ICPSR provides all of its documentation files in Portable Document Format (PDF). PDF is a cross-platform format for publishing documents that preserves the work's original design and layout, including fonts and ... | 2009-06-17 | |
| What is a codebook? A codebook provides information on the structure, contents, and layout of a data file. Users are strongly encouraged to look at the codebook of a study before downloading the data files. While codebooks vary ... | 2008-08-29 | |
| What is a data file? A data file is not the analyzed findings of a study or statistics, but the raw collected data from which these statistics might be extrapolated. It usually consists of rows and columns of alphanumeric characters. ... | 2008-08-29 | |
| What is the difference between an ASCII and a software-specific file? An ASCII file is a plain text file consisting of numbers, letters, and symbols with no formatting. An ASCII file can be opened in any word processing program. It can only be analyzed, however, if it is read into a ... | 2008-08-29 | |
| Who can download data from this archive? Most or all data collections are sponsored by the federal government and are therefore freely available to the public. All users who agree to the terms and conditions of use are allowed to download data from the ... | 2007-01-10 | |
| Why are no data files listed for certain data collections? If you find a data collection that you would like to download, but you are only given the option to download the documentation and no data, then you should read the README or Abstract files for more information about ... | 2007-08-21 | |
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