Tracy Elementary (Data source)
Source data for Tracy 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 | 629647 | 2382 | - | 2436 | = | -54 | * | (112 | / | 423) | = | -14.2978723 | ||
| 4 | 629648 | 2439 | - | 2485 | = | -46 | * | (103 | / | 423) | = | -11.20094558 | ||
| 5 | 629651 | 2445 | - | 2528 | = | -83 | * | (107 | / | 423) | = | -20.99527181 | ||
| 6 | 629652 | 2473 | - | 2552 | = | -79 | * | (101 | / | 423) | = | -18.86288412 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Tracy Elementary | -65 | ||||||||||||
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 | 20120 | 2399 | - | 2436 | = | -37 | * | (98 | / | 416) | = | -8.71634615 | ||
| 4 | 20122 | 2438 | - | 2485 | = | -47 | * | (103 | / | 416) | = | -11.63701919 | ||
| 5 | 20123 | 2467 | - | 2528 | = | -61 | * | (103 | / | 416) | = | -15.10336533 | ||
| 6 | 20125 | 2497 | - | 2552 | = | -55 | * | (112 | / | 416) | = | -14.8076923 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Tracy Elementary | -50 | ||||||||||||
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 | 20431 | 2412 | - | 2436 | = | -24 | * | (103 | / | 408) | = | -6.05882352 | ||
| 4 | 20434 | 2462 | - | 2485 | = | -23 | * | (94 | / | 408) | = | -5.29901959 | ||
| 5 | 20436 | 2445 | - | 2528 | = | -83 | * | (103 | / | 408) | = | -20.95343134 | ||
| 6 | 20437 | 2502 | - | 2552 | = | -50 | * | (108 | / | 408) | = | -13.2352941 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Tracy Elementary | -46 | ||||||||||||
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 | 20423 | 2413 | - | 2436 | = | -23 | * | (108 | / | 410) | = | -6.05853658 | ||
| 4 | 20425 | 2453 | - | 2485 | = | -32 | * | (111 | / | 410) | = | -8.66341462 | ||
| 5 | 20427 | 2482 | - | 2528 | = | -46 | * | (87 | / | 410) | = | -9.76097557 | ||
| 6 | 20429 | 2498 | - | 2552 | = | -54 | * | (104 | / | 410) | = | -13.69756094 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Tracy Elementary | -38 | ||||||||||||
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 | 20605 | 2431 | - | 2436 | = | -5 | * | (96 | / | 384) | = | -1.25 | ||
| 4 | 20606 | 2469 | - | 2485 | = | -16 | * | (100 | / | 384) | = | -4.16666666 | ||
| 5 | 20607 | 2474 | - | 2528 | = | -54 | * | (105 | / | 384) | = | -14.765625 | ||
| 6 | 20608 | 2525 | - | 2552 | = | -27 | * | (83 | / | 384) | = | -5.83593749 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Tracy Elementary | -26 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -50 | -46 | -38 | -26 | -225.0 | -45.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -3.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.0
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 | 89% | 89% | 88% | 86% | 100% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Baldwin Park 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.
Tracy Elementary math proficiency
Zero+ meets standard.
79% less $meal
78% less $meal
78% less $meal
79% less $meal
100% 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.