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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
|
|
# 1
|
Massachusetts: |
292
|
|
|
# 2
|
Minnesota: |
290
|
|
|
= 3
|
North Dakota: |
287
|
|
|
= 3
|
Vermont: |
287
|
|
|
= 3
|
South Dakota: |
287
|
|
|
# 6
|
Montana: |
286
|
|
|
= 7
|
Wisconsin: |
285
|
|
|
= 7
|
Washington: |
285
|
|
|
= 7
|
New Hampshire: |
285
|
|
|
= 10
|
Nebraska: |
284
|
|
|
= 10
|
Iowa: |
284
|
|
|
= 10
|
Kansas: |
284
|
|
|
= 10
|
Virginia: |
284
|
|
|
= 10
|
New Jersey: |
284
|
|
|
# 15
|
Ohio: |
283
|
|
|
= 16
|
North Carolina: |
282
|
|
|
= 16
|
Indiana: |
282
|
|
|
= 16
|
Oregon: |
282
|
|
|
= 16
|
Wyoming: |
282
|
|
|
= 20
|
Idaho: |
281
|
|
|
= 20
|
Connecticut: |
281
|
|
|
= 20
|
Pennsylvania: |
281
|
|
|
= 20
|
Delaware: |
281
|
|
|
= 20
|
Maine: |
281
|
|
|
= 20
|
Colorado: |
281
|
|
|
= 20
|
Texas: |
281
|
|
|
= 20
|
South Carolina: |
281
|
|
|
# 28
|
New York: |
280
|
|
|
= 29
|
Alaska: |
279
|
|
|
= 29
|
Utah: |
279
|
|
|
= 31
|
Illinois: |
278
|
|
|
= 31
|
Maryland: |
278
|
|
|
# 33
|
Michigan: |
277
|
|
|
# 34
|
Missouri: |
276
|
|
|
= 35
|
Kentucky: |
274
|
|
|
= 35
|
Arizona: |
274
|
|
|
= 35
|
Florida: |
274
|
|
|
= 38
|
Arkansas: |
272
|
|
|
= 38
|
Rhode Island: |
272
|
|
|
= 38
|
Georgia: |
272
|
|
|
= 41
|
Oklahoma: |
271
|
|
|
= 41
|
Tennessee: |
271
|
|
|
# 43
|
Nevada: |
270
|
|
|
= 44
|
California: |
269
|
|
|
= 44
|
West Virginia: |
269
|
|
|
# 46
|
Louisiana: |
268
|
|
|
# 47
|
Hawaii: |
266
|
|
|
# 48
|
New Mexico: |
263
|
|
|
= 49
|
Mississippi: |
262
|
|
|
= 49
|
Alabama: |
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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