New Lexington Elementary (Data source)
Source data for New Lexington 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 | 691548 | 2403 | - | 2436 | = | -33 | * | (49 | / | 213) | = | -7.59154928 | ||
| 4 | 691549 | 2427 | - | 2485 | = | -58 | * | (57 | / | 213) | = | -15.52112671 | ||
| 5 | 691552 | 2449 | - | 2528 | = | -79 | * | (55 | / | 213) | = | -20.399061 | ||
| 6 | 691553 | 2474 | - | 2552 | = | -78 | * | (52 | / | 213) | = | -19.04225349 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for New Lexington Elementary | -63 | ||||||||||||
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 | 21867 | 2399 | - | 2436 | = | -37 | * | (50 | / | 199) | = | -9.2964824 | ||
| 4 | 21868 | 2408 | - | 2485 | = | -77 | * | (45 | / | 199) | = | -17.41206028 | ||
| 5 | 21870 | 2470 | - | 2528 | = | -58 | * | (50 | / | 199) | = | -14.5728643 | ||
| 6 | 21873 | 2444 | - | 2552 | = | -108 | * | (54 | / | 199) | = | -29.30653256 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for New Lexington Elementary | -71 | ||||||||||||
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 | 22284 | 2414 | - | 2436 | = | -22 | * | (54 | / | 197) | = | -6.03045685 | ||
| 4 | 22285 | 2427 | - | 2485 | = | -58 | * | (49 | / | 197) | = | -14.42639591 | ||
| 5 | 22288 | 2453 | - | 2528 | = | -75 | * | (43 | / | 197) | = | -16.37055833 | ||
| 6 | 22289 | 2486 | - | 2552 | = | -66 | * | (51 | / | 197) | = | -17.08629437 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for New Lexington Elementary | -54 | ||||||||||||
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 | 22271 | 2380 | - | 2436 | = | -56 | * | (52 | / | 192) | = | -15.16666665 | ||
| 4 | 22273 | 2467 | - | 2485 | = | -18 | * | (55 | / | 192) | = | -5.15624999 | ||
| 5 | 22275 | 2445 | - | 2528 | = | -83 | * | (42 | / | 192) | = | -18.15625 | ||
| 6 | 22277 | 2495 | - | 2552 | = | -57 | * | (43 | / | 192) | = | -12.76562498 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for New Lexington Elementary | -51 | ||||||||||||
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 | 22449 | 2399 | - | 2436 | = | -37 | * | (45 | / | 184) | = | -9.04891303 | ||
| 4 | 22450 | 2466 | - | 2485 | = | -19 | * | (49 | / | 184) | = | -5.05978259 | ||
| 5 | 22451 | 2481 | - | 2528 | = | -47 | * | (49 | / | 184) | = | -12.51630431 | ||
| 6 | 22452 | 2517 | - | 2552 | = | -35 | * | (41 | / | 184) | = | -7.79891301 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for New Lexington Elementary | -34 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -63 | -71 | -54 | -51 | -34 | -273.0 | -54.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.6
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 | 95% | 95% | 92% | 94% | 92% |
| 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.
New Lexington Elementary math proficiency
Zero+ meets standard.
86% less $meal
89% less $meal
85% less $meal
91% less $meal
86% 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.