• Represent the 2001 Census population counts (new weights)
• Represent the new MSD scale – recalculation of DMSCS02 and the addition of DMSCdS03 for cycles 2 and 3.
• Correct the math score for cycle 3 (CMACS03)
• Add the age in months (DMMCdQ1B)

Codebooks for cycle 1, 2 and 3 have been revised as well. 
Cycle 1 codebook is now separated from the user guide.  Also, the Cycle 3 custody data have been removed.

Errata, October 1, 2009 (pdf)

Data Files - Primary   (48,711,612 uncompressed ) (1,522 record length ) (31,963 number of records ) (4,692,704 zip)

Data Files - 10 - 15  (3,616,967 uncompressed ) (651 record length ) (5,539 number of records ) (775,788 zip)

Variability Table (doc) (pdf)
Primary Codebook (pdf)
10 - 15 Codebook (pdf)
Primary User's Guide (doc) (pdf)
10 - 15 User's Guide (doc) (pdf)
Questionnaire Book 1 (Parent and Child) (pdf)

Questionnaire Book 2 (Education 10 - 11, 12 - 13, 14 - 15 years) (pdf)

Primary SAS File (ascii)
Primary SPSS File (ascii)
10 - 15 SAS File (ascii)
10 - 15 SPSS File (ascii)