Barstow Junior High: math

The shaded band is this school's normal range. If nothing about how it works changes, nearly every future year should land inside it. Zero means the typical student just meets the state standard. The small numbers under the years are how many students were tested.

Measured against the grade 3 bar

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 8.

All students

7th The average 7th grader scores 48 points under the grade 3 bar. 2388 vs. 2436. The 7th-grade bar is 2567.
8th The average 8th grader scores 53 points under the grade 3 bar. 2383 vs. 2436. The 8th-grade bar is 2586.

Students fluent in English

Math with English out of the way. Includes students who have only ever spoken English.

Grade bars 7th 199 students 48 points under the grade 3 bar. 8th 250 students 52 points under the grade 3 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 7th 35 students 47 points under the grade 3 bar. 8th 32 students 56 points under the grade 3 bar.

the group's average that grade's own bar the distance between

2026 results. "Meets standard" is the state's mark for being on track for that grade. The state leaves out any group of ten students or fewer, so a grade may be missing from the charts.

Step 1 · Each year's result

For each grade tested, take the average (mean) scale score from the California Department of Education's results file, and subtract the lowest score that counts as "Standard Met" for that grade. That is the grade's distance from standard. Weight each grade by its share of the students tested, then add the grades up. Grades where the state hides the average because ten or fewer students tested are left out entirely.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	64,660	2459.7	− 2567	−107.3	× 298 / 643	−49.7
8	64,663	2503.4	− 2586	−82.6	× 345 / 643	−44.3
Sum, rounded to a whole point						−94

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	59,979	2453.9	− 2567	−113.1	× 306 / 580	−59.7
8	59,981	2479.5	− 2586	−106.5	× 274 / 580	−50.3
Sum, rounded to a whole point						−110

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	61,709	2451.1	− 2567	−115.9	× 323 / 614	−61
8	61,711	2471.5	− 2586	−114.5	× 291 / 614	−54.3
Sum, rounded to a whole point						−115

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	61,801	2436.4	− 2567	−130.6	× 328 / 655	−65.4
8	61,804	2443.2	− 2586	−142.8	× 327 / 655	−71.3
Sum, rounded to a whole point						−137

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	62,071	2434.5	− 2567	−132.5	× 359 / 679	−70.1
8	62,072	2449.5	− 2586	−136.5	× 320 / 679	−64.3
Sum, rounded to a whole point						−134

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	60,690	2404.3	− 2567	−162.7	× 271 / 500	−88.2
8	60,691	2406.9	− 2586	−179.1	× 229 / 500	−82
Sum, rounded to a whole point						−170

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	62,158	2392.0	− 2567	−175	× 302 / 559	−94.5
8	62,159	2403.8	− 2586	−182.2	× 257 / 559	−83.8
Sum, rounded to a whole point						−178

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	62,096	2415.2	− 2567	−151.8	× 333 / 642	−78.7
8	62,097	2389.9	− 2586	−196.1	× 309 / 642	−94.4
Sum, rounded to a whole point						−173

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	62,043	2381.1	− 2567	−185.9	× 294 / 599	−91.2
8	62,044	2390.3	− 2586	−195.7	× 305 / 599	−99.6
Sum, rounded to a whole point						−191

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	61,802	2386.7	− 2567	−180.3	× 316 / 589	−96.7
8	61,803	2386.0	− 2586	−200	× 273 / 589	−92.7
Sum, rounded to a whole point						−189

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	61,777	2388.0	− 2567	−179	× 234 / 516	−81.2
8	61,778	2383.4	− 2586	−202.6	× 282 / 516	−110.7
Sum, rounded to a whole point						−192

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −94, −110, −115, −137, −134, −170, −178, −173, −191, −189, −192 → −153
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 16 · 2016→2017: 5 · 2017→2018: 22 · 2018→2019: 3 · 2019→2021: 36 · 2021→2022: 8 · 2022→2023: 5 · 2023→2024: 18 · 2024→2025: 2 · 2025→2026: 3 → average 11.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.8 × 2.66 = 31.4. Upper limit −121.6, lower limit −184.4.

Why 2.66? It is the standard factor from quality control, the work of Walter Shewhart and W. Edwards Deming. It turns "how much the result typically changes in a year" into "how far it can wander by chance alone".

Years with no result (no state tests were given in spring 2020) are skipped: the year-to-year change runs from the last year with a result to the next one.

Step 3 · Free or reduced-price meals

The share of enrolled students eligible for free or reduced-price meals. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.