Wright Elementary (Data source)
Source data for Wright 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 | 693338 | 2406 | - | 2436 | = | -30 | * | (75 | / | 721) | = | -3.12066573 | ||
| 4 | 693339 | 2430 | - | 2485 | = | -55 | * | (80 | / | 721) | = | -6.10263522 | ||
| 5 | 693342 | 2472 | - | 2528 | = | -56 | * | (90 | / | 721) | = | -6.99029122 | ||
| 6 | 693343 | 2470 | - | 2552 | = | -82 | * | (90 | / | 721) | = | -10.23578358 | ||
| 7 | 693346 | 2483 | - | 2567 | = | -84 | * | (190 | / | 721) | = | -22.13592226 | ||
| 8 | 693347 | 2540 | - | 2586 | = | -46 | * | (196 | / | 721) | = | -12.50485436 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wright Elementary | -61 | ||||||||||||
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 | 21932 | 2396 | - | 2436 | = | -40 | * | (87 | / | 674) | = | -5.16320472 | ||
| 4 | 21935 | 2440 | - | 2485 | = | -45 | * | (72 | / | 674) | = | -4.80712163 | ||
| 5 | 21936 | 2465 | - | 2528 | = | -63 | * | (78 | / | 674) | = | -7.29080113 | ||
| 6 | 21938 | 2504 | - | 2552 | = | -48 | * | (87 | / | 674) | = | -6.19584566 | ||
| 7 | 21940 | 2507 | - | 2567 | = | -60 | * | (160 | / | 674) | = | -14.24332344 | ||
| 8 | 21943 | 2533 | - | 2586 | = | -53 | * | (190 | / | 674) | = | -14.94065278 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wright Elementary | -53 | ||||||||||||
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 | 22350 | 2427 | - | 2436 | = | -9 | * | (69 | / | 641) | = | -0.96879875 | ||
| 4 | 22351 | 2432 | - | 2485 | = | -53 | * | (82 | / | 641) | = | -6.7800312 | ||
| 5 | 22354 | 2465 | - | 2528 | = | -63 | * | (72 | / | 641) | = | -7.076443 | ||
| 6 | 22356 | 2473 | - | 2552 | = | -79 | * | (81 | / | 641) | = | -9.98283927 | ||
| 7 | 22357 | 2538 | - | 2567 | = | -29 | * | (174 | / | 641) | = | -7.87207488 | ||
| 8 | 22359 | 2528 | - | 2586 | = | -58 | * | (163 | / | 641) | = | -14.74882992 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wright Elementary | -47 | ||||||||||||
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 | 22335 | 2441 | - | 2436 | = | 5 | * | (74 | / | 617) | = | 0.59967585 | ||
| 4 | 22336 | 2461 | - | 2485 | = | -24 | * | (71 | / | 617) | = | -2.76175039 | ||
| 5 | 22339 | 2491 | - | 2528 | = | -37 | * | (78 | / | 617) | = | -4.67747162 | ||
| 6 | 22340 | 2504 | - | 2552 | = | -48 | * | (78 | / | 617) | = | -6.0680713 | ||
| 7 | 22343 | 2535 | - | 2567 | = | -32 | * | (139 | / | 617) | = | -7.20907616 | ||
| 8 | 22344 | 2605 | - | 2586 | = | 19 | * | (177 | / | 617) | = | 5.45056726 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wright Elementary | -15 | ||||||||||||
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 | 22515 | 2438 | - | 2436 | = | 2 | * | (59 | / | 566) | = | 0.20848056 | ||
| 4 | 22516 | 2471 | - | 2485 | = | -14 | * | (75 | / | 566) | = | -1.85512366 | ||
| 5 | 22517 | 2492 | - | 2528 | = | -36 | * | (69 | / | 566) | = | -4.38869257 | ||
| 6 | 22518 | 2520 | - | 2552 | = | -32 | * | (75 | / | 566) | = | -4.24028266 | ||
| 7 | 22519 | 2563 | - | 2567 | = | -4 | * | (155 | / | 566) | = | -1.09540636 | ||
| 8 | 22520 | 2598 | - | 2586 | = | 12 | * | (133 | / | 566) | = | 2.81978798 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wright Elementary | -9 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -61 | -53 | -47 | -15 | -9 | -185.0 | -37.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 32.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -106.0
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 | 92% | 92% | 91% | 95% | 97% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
El Monte City 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.
Wright Elementary math proficiency
Zero+ meets standard.
83% less $meal
82% less $meal
78% less $meal
87% less $meal
89% 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.