Sun Valley Magnet (Data source)
Source data for Sun Valley Magnet
2015
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 6 | 1001048 | 2457 | - | 2552 | = | -95 | * | (314 | / | 867) | = | -34.40599762 | ||
| 7 | 1001051 | 2474 | - | 2567 | = | -93 | * | (270 | / | 867) | = | -28.96193771 | ||
| 8 | 1001052 | 2475 | - | 2586 | = | -111 | * | (283 | / | 867) | = | -36.2318339 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sun Valley Magnet | -100 | ||||||||||||
2016
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 6 | 31584 | 2465 | - | 2552 | = | -87 | * | (394 | / | 1095) | = | -31.30410954 | ||
| 7 | 31587 | 2446 | - | 2567 | = | -121 | * | (353 | / | 1095) | = | -39.00730591 | ||
| 8 | 31588 | 2499 | - | 2586 | = | -87 | * | (298 | / | 1095) | = | -23.67671227 | ||
| 11 | 31591 | 2602 | - | 2628 | = | -26 | * | (50 | / | 1095) | = | -1.1872146 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sun Valley Magnet | -95 | ||||||||||||
2017
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 6 | 32137 | 2470 | - | 2552 | = | -82 | * | (386 | / | 1178) | = | -26.86926989 | ||
| 7 | 32140 | 2465 | - | 2567 | = | -102 | * | (395 | / | 1178) | = | -34.20203728 | ||
| 8 | 32141 | 2475 | - | 2586 | = | -111 | * | (334 | / | 1178) | = | -31.4719864 | ||
| 11 | 32144 | 2567 | - | 2628 | = | -61 | * | (63 | / | 1178) | = | -3.26230898 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sun Valley Magnet | -96 | ||||||||||||
2018
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 6 | 32164 | 2473 | - | 2552 | = | -79 | * | (392 | / | 1236) | = | -25.05501614 | ||
| 7 | 32166 | 2458 | - | 2567 | = | -109 | * | (386 | / | 1236) | = | -34.04045301 | ||
| 8 | 32168 | 2493 | - | 2586 | = | -93 | * | (385 | / | 1236) | = | -28.96844659 | ||
| 11 | 32170 | 2602 | - | 2628 | = | -26 | * | (73 | / | 1236) | = | -1.53559869 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sun Valley Magnet | -90 | ||||||||||||
2019
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 6 | 32347 | 2481 | - | 2552 | = | -71 | * | (327 | / | 1181) | = | -19.65876372 | ||
| 7 | 32348 | 2481 | - | 2567 | = | -86 | * | (394 | / | 1181) | = | -28.69093988 | ||
| 8 | 32349 | 2487 | - | 2586 | = | -99 | * | (379 | / | 1181) | = | -31.77053342 | ||
| 11 | 32350 | 2591 | - | 2628 | = | -37 | * | (81 | / | 1181) | = | -2.53767993 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sun Valley Magnet | -83 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -100 | -95 | -96 | -90 | -83 | -464.0 | -92.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -74.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.8
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 93% | 89% | 87% | 93% | 92% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Angeles Unified school district | County of Los Angeles
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Sun Valley Magnet math proficiency
Zero+ meets standard.
91% less $meal
80% less $meal
80% less $meal
88% less $meal
88% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.