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DEFINITION
For each different subject, NAEP creates a scale score based on statistical procedures called item response theory (IRT). IRT is a set of statistical procedures useful in summarizing student performance across a collection of test exercises requiring similar knowledge and skills. All NAEP subject area scales are produced using these procedures. In Math and Reading, NAEP creates a scale ranging from 0-500. In Science and Writing, NAEP creates a scale ranging from 0-300.
Education Statistics > Assessments > Scale Score, Grade 8 Math (most recent) by state
Showing latest available data.
| Rank |
States
|
Amount
(top to bottom)
|
| #1 | Massachusetts: |
292
| |
| #2 | Minnesota: |
290
| |
| #3 | South Dakota: |
287
| |
| #4 | Vermont: |
287
| |
| #5 | North Dakota: |
287
| |
| #6 | Montana: |
286
| |
| #7 | Washington: |
285
| |
| #8 | Wisconsin: |
285
| |
| #9 | New Hampshire: |
285
| |
| #10 | Nebraska: |
284
| |
| #11 | Virginia: |
284
| |
| #12 | Kansas: |
284
| |
| #13 | Iowa: |
284
| |
| #14 | New Jersey: |
284
| |
| #15 | Ohio: |
283
| |
| #16 | Indiana: |
282
| |
| #17 | North Carolina: |
282
| |
| #18 | Oregon: |
282
| |
| #19 | Wyoming: |
282
| |
| #20 | Idaho: |
281
| |
| #21 | Connecticut: |
281
| |
| #22 | Pennsylvania: |
281
| |
| #23 | South Carolina: |
281
| |
| #24 | Texas: |
281
| |
| #25 | Maine: |
281
| |
| #26 | Colorado: |
281
| |
| #27 | Delaware: |
281
| |
| #28 | New York: |
280
| |
| #29 | Utah: |
279
| |
| #30 | Alaska: |
279
| |
| #31 | Maryland: |
278
| |
| #32 | Illinois: |
278
| |
| #33 | Michigan: |
277
| |
| #34 | Missouri: |
276
| |
| #35 | Florida: |
274
| |
| #36 | Kentucky: |
274
| |
| #37 | Arizona: |
274
| |
| #38 | Arkansas: |
272
| |
| #39 | Georgia: |
272
| |
| #40 | Rhode Island: |
272
| |
| #41 | Oklahoma: |
271
| |
| #42 | Tennessee: |
271
| |
| #43 | Nevada: |
270
| |
| #44 | California: |
269
| |
| #45 | West Virginia: |
269
| |
| #46 | Louisiana: |
268
| |
| #47 | Hawaii: |
266
| |
| #48 | New Mexico: |
263
| |
| #49 | Alabama: |
262
| |
| #50 | Mississippi: |
262
| |
| #51 | District of Columbia: |
245
| |
| |
Weighted average: |
277.7
|
|
DEFINITION: For each different subject, NAEP creates a scale score based on statistical procedures called item response theory (IRT). IRT is a set of statistical procedures useful in summarizing student performance across a collection of test exercises requiring similar knowledge and skills. All NAEP subject area scales are produced using these procedures. In Math and Reading, NAEP creates a scale ranging from 0-500. In Science and Writing, NAEP creates a scale ranging from 0-300.
See also
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