"...a method of gathering information from a number of individuals, a 'sample,' in order to learn something about the larger population from which the sample has been drawn." (From the American Statistical Association.)
By using ICPSR Direct, all members of the Washington University community may download data and electronic codebooks directly from the ICPSR web site. Data may be downloaded to any University IP address.
Free, ready access to comprehensive research data in a variety of formats. Facilitates the use of data sets with a primary focus on substance abuse or mental health