Del Sur Senior Elementary (Data source)
Source data for Del Sur Senior Elementary
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 |
||
| 3 | 1144882 | 2397 | - | 2436 | = | -39 | * | (74 | / | 533) | = | -5.41463411 | ||
| 4 | 1144883 | 2448 | - | 2485 | = | -37 | * | (69 | / | 533) | = | -4.78986863 | ||
| 5 | 1144886 | 2466 | - | 2528 | = | -62 | * | (76 | / | 533) | = | -8.84052532 | ||
| 6 | 1144887 | 2521 | - | 2552 | = | -31 | * | (73 | / | 533) | = | -4.2457786 | ||
| 7 | 1144890 | 2508 | - | 2567 | = | -59 | * | (123 | / | 533) | = | -13.61538457 | ||
| 8 | 1144891 | 2547 | - | 2586 | = | -39 | * | (118 | / | 533) | = | -8.63414631 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Del Sur Senior Elementary | -46 | ||||||||||||
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 |
||
| 3 | 35630 | 2414 | - | 2436 | = | -22 | * | (59 | / | 558) | = | -2.32616487 | ||
| 4 | 35632 | 2438 | - | 2485 | = | -47 | * | (84 | / | 558) | = | -7.0752688 | ||
| 5 | 35634 | 2468 | - | 2528 | = | -60 | * | (77 | / | 558) | = | -8.27956986 | ||
| 6 | 35635 | 2527 | - | 2552 | = | -25 | * | (86 | / | 558) | = | -3.85304658 | ||
| 7 | 35638 | 2510 | - | 2567 | = | -57 | * | (129 | / | 558) | = | -13.17741932 | ||
| 8 | 35640 | 2548 | - | 2586 | = | -38 | * | (123 | / | 558) | = | -8.37634407 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Del Sur Senior Elementary | -43 | ||||||||||||
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 |
||
| 3 | 36332 | 2378 | - | 2436 | = | -58 | * | (87 | / | 616) | = | -8.19155843 | ||
| 4 | 36333 | 2455 | - | 2485 | = | -30 | * | (94 | / | 616) | = | -4.57792206 | ||
| 5 | 36335 | 2451 | - | 2528 | = | -77 | * | (97 | / | 616) | = | -12.12499996 | ||
| 6 | 36337 | 2511 | - | 2552 | = | -41 | * | (88 | / | 616) | = | -5.85714282 | ||
| 7 | 36340 | 2502 | - | 2567 | = | -65 | * | (123 | / | 616) | = | -12.97889606 | ||
| 8 | 36341 | 2542 | - | 2586 | = | -44 | * | (127 | / | 616) | = | -9.07142856 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Del Sur Senior Elementary | -53 | ||||||||||||
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 |
||
| 3 | 36321 | 2424 | - | 2436 | = | -12 | * | (73 | / | 612) | = | -1.43137254 | ||
| 4 | 36323 | 2444 | - | 2485 | = | -41 | * | (100 | / | 612) | = | -6.69934637 | ||
| 5 | 36325 | 2477 | - | 2528 | = | -51 | * | (99 | / | 612) | = | -8.24999996 | ||
| 6 | 36327 | 2492 | - | 2552 | = | -60 | * | (95 | / | 612) | = | -9.31372548 | ||
| 7 | 36329 | 2462 | - | 2567 | = | -105 | * | (126 | / | 612) | = | -21.61764696 | ||
| 8 | 36331 | 2534 | - | 2586 | = | -52 | * | (119 | / | 612) | = | -10.11111109 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Del Sur Senior Elementary | -57 | ||||||||||||
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 |
||
| 3 | 36487 | 2420 | - | 2436 | = | -16 | * | (76 | / | 611) | = | -1.99018003 | ||
| 4 | 36488 | 2465 | - | 2485 | = | -20 | * | (77 | / | 611) | = | -2.52045826 | ||
| 5 | 36489 | 2453 | - | 2528 | = | -75 | * | (106 | / | 611) | = | -13.0114566 | ||
| 6 | 36490 | 2517 | - | 2552 | = | -35 | * | (102 | / | 611) | = | -5.84288051 | ||
| 7 | 36491 | 2513 | - | 2567 | = | -54 | * | (125 | / | 611) | = | -11.04746315 | ||
| 8 | 36492 | 2503 | - | 2586 | = | -83 | * | (125 | / | 611) | = | -16.98036003 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Del Sur Senior Elementary | -51 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -46 | -43 | -53 | -57 | -51 | -250.0 | -50.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -35.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.0
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 | 40% | 45% | 47% | 46% | 48% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Westside Union Elementary 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.
Del Sur Senior Elementary math proficiency
Zero+ meets standard.
31% less $meal
37% less $meal
41% less $meal
41% less $meal
40% 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.