Presentation on theme: "Begin by accessing the system at: Data Analysis System (DAS)"— Presentation transcript:
Begin by accessing the system at: http://nces.ed.gov/das Data Analysis System (DAS)
National Center for Education Statistics (NCES) Mission – To make the data collected on education available to the public Provide indicators on the status and trends in education Report on the condition of education to Congress, state policymakers, educational practitioners, the media, and the public Assist states and school districts in improving their statistical systems Review and report on education in other nations
National Center for Education Statistics (NCES) On the web… Surveys and Programs Publications Data http://nces.ed.gov
DAS is not PAS!!! In PAS… – The rows are individual institutions – User defines the columns by selecting other IPEDS variables The DAS… – Is a table generator – Which produces aggregated data – The user creates or modifies table parameter files (TPFs) by tagging: Row variables Column variables and specifying Spanner variables, Filters, etc.
The DAS Web Site The vehicle for public access to education survey data collected by the U.S. Department of Education. Comprehensive source for tables, findings, and reports generated by NCES researchers. Data Analysis System On Line (DASOL) enables users to generate their own tables.
You can also use DAS to access the Quick Tables published by NCES Well search for postsecondary tables with degrees in the table title
Many of these tables are based on IPEDS datafor example, number of degrees conferred to Black, non- Hispanics …
Column variables: average price of attendance average tuition and fees Column variables: average price of attendance average tuition and fees Row variable: region Row variable: region Spanner variable: level of institution Spanner variable: level of institution Note: Rows are repeated for each level of the spanner variable. Look at the structure of a DAS table: Table Title
Access Applications Access the DASOL Application at http://nces.ed.gov/dasol/ To Create Tables
Return to the main menu at http://nces.ed.gov/dasol/ http://nces.ed.gov/dasol/ and click To Create Tables. To Create Correlations is not available for IPEDS data. Return to the main menu at http://nces.ed.gov/dasol/ http://nces.ed.gov/dasol/ and click To Create Tables. To Create Correlations is not available for IPEDS data.
Postsecondary Institution Data is IPEDS data; the other categories reference data from other NCES surveys
IPEDS data is available in DAS for 2002, 2003, and 2004. This is adjudicated data that can be used to generate national, regional, and state totals and averages. IPEDS data is available in DAS for 2002, 2003, and 2004. This is adjudicated data that can be used to generate national, regional, and state totals and averages.
Alternatively, you can access the DAS applications for specific datasets using the pull- down menu.
IPEDS in DAS IPEDS in DAS Generate totals and averages – National – Regional – State With adjudicated IPEDS data – 2004-05 – 2003-04 – 2002-03
Steps for Creating a Table Specify row variables Specify column variables Specify qualifying values, if necessary Run the resulting table parameter file (TPF) The process of selecting your variables is called tagging. A tag tells DASOL how to use each variable in building the table.
List of Variables Organizational Framework and Search Capabilities
Note the menu bar. Survey and year are specified. These are the categories available for 2004. More variables are available for earlier years, and more will be added for 2004 as the adjudication process is completed. Online Help is a great resource for learning to use DAS Online!
The directory tree structure of the variables list expands to show the variables that are stored under each of the major headings. A plus sign indicates there are variables listed under the heading. Once the heading is expanded a minus sign indicates the list has been expanded.
Tagging Variables Rows, Columns, Spanners, Filters, and Qualifying Values
DAS Online Exercise #1 The first exercise shows you how to create a simple table of total headcount enrollment by Carnegie Classification and save the table parameter file (TPF) to your drive. The top section of your report shows total headcount enrollment by Carnegie Classification, and the bottom section shows the number of schools in each classification.
DAS Online Exercise #2 The second exercise shows you how to import and edit the TPF you just saved so you can group the Carnegie Classifications into fewer categories. This report has the same structure, but both sections reflect the categories just created.
In the modified table, the schools are grouped per your specification.
User Help Center Tutorials Help with Tags T-test Tool Technical Assistance
Online Help is divided into four sections Online Help is divided into four sections IMPORTANT! All new users should start with the tutorial! DAS is very different from the other tools weve reviewed. IMPORTANT! All new users should start with the tutorial! DAS is very different from the other tools weve reviewed.