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The SAMHDA Project
Statement of Commitment
State Area Estimates
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What is SAMHDA?
How does SAMHDA prepare public-use data files for release?
How do I contact someone at SAMHDA for assistance?
How much do SAMHDA data sets cost?
How often does SAMHDA release new data files for download? Can I be notified?
What resources are available through SAMHDA?
Where do I go for treatment help?
Access to Data
Do I have to create a MyData account to download SAMHDA holdings?
How do I get permission to use the public-use data archived at SAMHDA?
What will happen when the Data Portal reopens?
What are the differences between PDAS, RDAS, and the Data Portal?
When will the Data Portal reopen?
Will I have to download software to obtain access to the Data Portal?
How to Cite SAMHDA Data
How do I submit a citation for publication I have written using your data?
Why and how should I cite SAMHDA data?
Documentation & Survey Instruments
A data collection instrument is included in the documentation for a study. Can I use this instrument for my project?
What is a codebook?
What kind of documentation files do you provide?
Where do I get information about the names and meanings of variables?
Why can't I print my PDF codebook?
Data Formats and Files
How do I interpret a record from an ASCII data file?
How do I read data into R?
How do I use Excel to import tab-delimited ASCII data?
I'm using SPSS on a Mac. I can't read ASCII data files using the SPSS setup file I downloaded. What do I do?
I downloaded data from your site, but my statistics application issues an error message that the file cannot be found.
I receive a "file not found" error when trying to use a setup file. What is wrong?
What is a SAS CPORT file? How do I use it?
What kind of data formats does SAMHDA distribute? Do you have SPSS portable files? SAS transport? Strata?
National Survey of Substance Abuse Treatment Services (N-SSATS) Series
How do I correctly calculate N-SSATS client counts and admissions using SDA?