Trona Elementary (Data source)
Source data for Trona 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 | 2064433 | 2405 | - | 2436 | = | -31 | * | (22 | / | 74) | = | -9.21621621 | ||
| 4 | 2064434 | 2473 | - | 2485 | = | -12 | * | (21 | / | 74) | = | -3.4054054 | ||
| 5 | 2064437 | 2444 | - | 2528 | = | -84 | * | (17 | / | 74) | = | -19.29729724 | ||
| 6 | 2064438 | 2484 | - | 2552 | = | -68 | * | (14 | / | 74) | = | -12.86486485 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Trona Elementary | -45 | ||||||||||||
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 | 63437 | 2390 | - | 2436 | = | -46 | * | (22 | / | 88) | = | -11.5 | ||
| 4 | 63439 | 2471 | - | 2485 | = | -14 | * | (24 | / | 88) | = | -3.81818181 | ||
| 5 | 63440 | 2500 | - | 2528 | = | -28 | * | (23 | / | 88) | = | -7.31818181 | ||
| 6 | 63443 | 2479 | - | 2552 | = | -73 | * | (19 | / | 88) | = | -15.76136357 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Trona Elementary | -38 | ||||||||||||
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 | 65231 | 2389 | - | 2436 | = | -47 | * | (20 | / | 89) | = | -10.56179775 | ||
| 4 | 65232 | 2436 | - | 2485 | = | -49 | * | (23 | / | 89) | = | -12.66292133 | ||
| 5 | 65234 | 2487 | - | 2528 | = | -41 | * | (21 | / | 89) | = | -9.6741573 | ||
| 6 | 65237 | 2516 | - | 2552 | = | -36 | * | (25 | / | 89) | = | -10.11235954 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Trona Elementary | -43 | ||||||||||||
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 | 65316 | 2421 | - | 2436 | = | -15 | * | (15 | / | 78) | = | -2.88461538 | ||
| 4 | 65319 | 2430 | - | 2485 | = | -55 | * | (20 | / | 78) | = | -14.10256408 | ||
| 5 | 65320 | 2458 | - | 2528 | = | -70 | * | (22 | / | 78) | = | -19.74358974 | ||
| 6 | 65323 | 2525 | - | 2552 | = | -27 | * | (21 | / | 78) | = | -7.26923076 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Trona Elementary | -44 | ||||||||||||
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 | 65702 | 2402 | - | 2436 | = | -34 | * | (23 | / | 72) | = | -10.8611111 | ||
| 4 | 65703 | 2465 | - | 2485 | = | -20 | * | (15 | / | 72) | = | -4.16666666 | ||
| 5 | 65704 | 2502 | - | 2528 | = | -26 | * | (19 | / | 72) | = | -6.86111109 | ||
| 6 | 65705 | 2521 | - | 2552 | = | -31 | * | (15 | / | 72) | = | -6.45833332 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Trona Elementary | -28 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -45 | -38 | -43 | -44 | -28 | -198.0 | -39.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -18.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -60.6
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 | 60% | 71% | 71% | 71% | 71% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Trona Joint Unified school district County of San Bernardino
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Trona Elementary math proficiency
Zero+ meets standard.
52% less $meal
61% less $meal
63% less $meal
67% less $meal
61% 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.
Elementary School (Public) schools in Trona Joint Unified (1)
| Trona Elementary |