Restricted-Use Data Supplement to the User's Guide for the Progress in International Reading Literacy Study (PIRLS): 2006 Data Files and Database with United States Specific Variables
The User's Guide for the PIRLS 2006 restricted-use data for the United States is a supplement to the PIRLS 2006 public-use data technical manual. This supplement describes the variables in the restricted-use datafile and how to merge them with the public-use datafile so they may be used.
