Vejar Elementary (Data source)
Source data for Vejar 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 | 1099180 | 2377 | - | 2436 | = | -59 | * | (89 | / | 588) | = | -8.9302721 | ||
| 4 | 1099183 | 2400 | - | 2485 | = | -85 | * | (112 | / | 588) | = | -16.19047615 | ||
| 5 | 1099184 | 2444 | - | 2528 | = | -84 | * | (105 | / | 588) | = | -14.99999995 | ||
| 6 | 1099187 | 2474 | - | 2552 | = | -78 | * | (98 | / | 588) | = | -12.99999995 | ||
| 7 | 1099188 | 2448 | - | 2567 | = | -119 | * | (92 | / | 588) | = | -18.61904762 | ||
| 8 | 1099191 | 2504 | - | 2586 | = | -82 | * | (92 | / | 588) | = | -12.82993197 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Vejar Elementary | -85 | ||||||||||||
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 | 34401 | 2384 | - | 2436 | = | -52 | * | (114 | / | 591) | = | -10.03045685 | ||
| 4 | 34404 | 2429 | - | 2485 | = | -56 | * | (85 | / | 591) | = | -8.05414551 | ||
| 5 | 34406 | 2440 | - | 2528 | = | -88 | * | (117 | / | 591) | = | -17.42131978 | ||
| 6 | 34408 | 2456 | - | 2552 | = | -96 | * | (98 | / | 591) | = | -15.91878163 | ||
| 7 | 34410 | 2490 | - | 2567 | = | -77 | * | (94 | / | 591) | = | -12.24703888 | ||
| 8 | 34411 | 2520 | - | 2586 | = | -66 | * | (83 | / | 591) | = | -9.26903551 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Vejar Elementary | -73 | ||||||||||||
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 | 35013 | 2384 | - | 2436 | = | -52 | * | (112 | / | 625) | = | -9.3184 | ||
| 4 | 35015 | 2410 | - | 2485 | = | -75 | * | (118 | / | 625) | = | -14.16 | ||
| 5 | 35018 | 2441 | - | 2528 | = | -87 | * | (90 | / | 625) | = | -12.528 | ||
| 6 | 35020 | 2490 | - | 2552 | = | -62 | * | (118 | / | 625) | = | -11.7056 | ||
| 7 | 35021 | 2476 | - | 2567 | = | -91 | * | (100 | / | 625) | = | -14.56 | ||
| 8 | 35023 | 2519 | - | 2586 | = | -67 | * | (87 | / | 625) | = | -9.3264 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Vejar Elementary | -72 | ||||||||||||
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 | 35024 | 2391 | - | 2436 | = | -45 | * | (81 | / | 600) | = | -6.075 | ||
| 4 | 35026 | 2439 | - | 2485 | = | -46 | * | (108 | / | 600) | = | -8.28 | ||
| 5 | 35028 | 2439 | - | 2528 | = | -89 | * | (119 | / | 600) | = | -17.65166664 | ||
| 6 | 35030 | 2503 | - | 2552 | = | -49 | * | (97 | / | 600) | = | -7.92166663 | ||
| 7 | 35032 | 2489 | - | 2567 | = | -78 | * | (100 | / | 600) | = | -12.99999995 | ||
| 8 | 35034 | 2502 | - | 2586 | = | -84 | * | (95 | / | 600) | = | -13.29999997 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Vejar Elementary | -66 | ||||||||||||
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 | 35201 | 2398 | - | 2436 | = | -38 | * | (103 | / | 581) | = | -6.7366609 | ||
| 4 | 35202 | 2423 | - | 2485 | = | -62 | * | (88 | / | 581) | = | -9.39070563 | ||
| 5 | 35203 | 2438 | - | 2528 | = | -90 | * | (104 | / | 581) | = | -16.11015489 | ||
| 6 | 35204 | 2474 | - | 2552 | = | -78 | * | (115 | / | 581) | = | -15.43889841 | ||
| 7 | 35205 | 2484 | - | 2567 | = | -83 | * | (86 | / | 581) | = | -12.28571428 | ||
| 8 | 35206 | 2508 | - | 2586 | = | -78 | * | (85 | / | 581) | = | -11.41135967 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Vejar Elementary | -71 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -85 | -73 | -72 | -66 | -71 | -367.0 | -73.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -94.4
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% | 93% | 94% | 94% | 96% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pomona 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.
Vejar Elementary math proficiency
Zero+ meets standard.
86% less $meal
85% less $meal
82% less $meal
87% 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.