Any Consolidated Metropolitan Statistical Area (CMSA), Metropolitan Statistical Area (MSA), or New England County Metropolitan Area (NECMA) proto-PSU was defined as a certainty PSU if it had 800,000 or more youths. The estimated number of youths is the number of persons age 17 or less from the 2000 Census Summary File 1 (SF-1) files. These PSUs were so large that a sample of schools was taken from all of these PSUs (rather than a sample of these PSUs). There were two exceptions to the 800,000 cutoff. The Honolulu, Hawaii MSA was added because of its unique racial composition. The Washington, DC portion of the Washington-Baltimore CMSA was included as a certainty as it will be re-attached to the Maryland portion of this CMSA in field work. The table below provides a listing of the 17 certainty PSUs.
|PSU||Consolidated Metropolitan Statistical Area (CMSA) or Metropolitan Statistical Area (MSA)||State||Number of counties||Number of
|1--1||New York-Northern New Jersey-Long Island||NY||12||3,145,000|
|1--2||New York-Northern New Jersey-Long Island||NJ||14||1,637,000|
|†||Total NAEP Region Northeast||†||51||8,333,000|
|†||Total NAEP Region Southeast||†||22||2,038,000|
|†||Total NAEP Region Central||†||20||3,694,000|
|4--1||Los Angeles-Riverside-Orange County||CA||5||4,671,000|
|4--2||San Francisco-Oakland-San Jose||CA||10||1,663,000|
|†||Total NAEP Region West||†||44||11,115,000|
|† Not applicable.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004.