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NAEP Assessment Sample Design → NAEP 2016 Sample Design → Selection of Primary Sampling Units (PSUs) for the 2016 Assessment → Primary Sampling Unit (PSU) Generation: Certainty PSUs for the 2016 Assessment
NAEP Technical DocumentationPrimary Sampling Unit (PSU) Generation: Certainty PSUs for the 2016 Assessment
Any primary sampling unit (PSU) was defined as a certainty PSU if it had 500,000 or more youths or if it represented more than 80 percent of its assigned stratum. The estimated number of youths is the number of persons aged 17 or under from the 2010 Decennial Census. These PSUs were so large that a sample of schools was taken from all of them (rather than from only a subsample of them, as with noncertainty PSUs). The Honolulu, Hawaii PSU was included as a certainty by design in order to reduce the variability of including Asian and Native Hawaiian/Other Pacific Islander students. A total of 29 PSUs were classified as certainties in the 2016 frame. The table below provides a listing of the certainty PSUs by census region. Note that the names of the metropolitan statistical areas do not represent the cities proper. Rather they can and do cross jurisdiction and county boundaries (for example, the Boston-Cambridge-Quincy metropolitan statistical area includes Massachusetts and New Hampshire).
PSU | Metropolitan statistical area | Jurisdiction | Number of counties | Number of youths |
|---|---|---|---|---|
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2016 Assessment. | ||||
| Grand total | 241 | 32,305,553 | ||
| Total Northeast | 39 | 6,459,026 | ||
| 1--1 | Boston-Cambridge-Quincy | MA-NH | 7 | 975,357 |
| 1--2 | New York-Northern New Jersey-Long Island | NY-NJ-PA | 23 | 4,271,305 |
| 1--3 | Philadelphia-Camden-Wilmington (Northeast part) | PA-NJ | 9 | 1,212,364 |
| Total Midwest | 64 | 5,284,613 | ||
| 2--1 | Chicago-Joliet-Naperville | IL-IN-WI | 14 | 2,295,026 |
| 2--2 | Detroit-Warren-Livonia | MI | 6 | 995,932 |
| 2--3 | Kansas City | MO-KS | 15 | 521,115 |
| 2--4 | Minneapolis-St. Paul-Bloomington | MN-WI | 13 | 823,432 |
| 2--5 | St. Louis | MO-IL | 16 | 649,108 |
| Total South | 98 | 9,881,285 | ||
| 3--1 | Atlanta-Sandy Springs-Marietta | GA | 28 | 1,414,144 |
| 3--2 | Baltimore-Towson | MD | 7 | 619,169 |
| 3--3 | Dallas-Fort Worth-Arlington | TX | 12 | 1,828,715 |
| 3--4 | Houston-Sugar Land-Baytown | TX | 10 | 1,725,642 |
| 3--5 | Miami-Fort Lauderdale-Pompano Beach | FL | 3 | 1,217,051 |
| 3--6 | Orlando-Kissimmee-Sanford | FL | 4 | 513,073 |
| 3--7 | San Antonio-New Braunfels | TX | 8 | 593,070 |
| 3--8 | Tampa-St. Petersburg-Clearwater | FL | 4 | 593,541 |
| 3--9 | Washington-Arlington-Alexandria | DC-VA-MD-WV | 22 | 1,376,880 |
| Total West | 40 | 10,680,629 | ||
| 4--1 | Denver-Aurora-Broomfield | CO | 10 | 648,320 |
| 4--2 | Honolulu | HI | 1 | 213,373 |
| 4--3 | Las Vegas-Paradise | NV | 1 | 489,627 |
| 4--4 | Los Angeles-Long Beach-Santa Ana | CA | 2 | 3,049,727 |
| 4--5 | Phoenix-Mesa-Glendale | AZ | 2 | 1,113,693 |
| 4--6 | Portland-Vancouver-Hillsboro | OR-WA | 7 | 528,036 |
| 4--7 | Riverside-San Bernardino-Ontario | CA | 2 | 1,193,972 |
| 4--8 | Sacramento--Arden-Arcade--Roseville | CA | 4 | 530,050 |
| 4--9 | San Diego-Carlsbad-San Marcos | CA | 1 | 726,397 |
| 4--10 | San Francisco-Oakland-Fremont | CA | 5 | 931,339 |
| 4--11 | San Jose-Sunnyvale-Santa Clara | CA | 2 | 451,520 |
| 4--12 | Seattle-Tacoma-Bellevue | WA | 3 | 804,575 |
Last updated 16 February 2022 (PG)