Discovery School of the Arts (Data source)
Source data for Discovery School of the Arts
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 | 2070653 | 2409 | - | 2436 | = | -27 | * | (139 | / | 539) | = | -6.96289424 | ||
| 4 | 2070656 | 2444 | - | 2485 | = | -41 | * | (148 | / | 539) | = | -11.25788496 | ||
| 5 | 2070657 | 2481 | - | 2528 | = | -47 | * | (131 | / | 539) | = | -11.42300554 | ||
| 6 | 2070660 | 2526 | - | 2552 | = | -26 | * | (121 | / | 539) | = | -5.83673467 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Discovery School of the Arts | -35 | ||||||||||||
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 | 63611 | 2428 | - | 2436 | = | -8 | * | (130 | / | 535) | = | -1.94392523 | ||
| 4 | 63612 | 2463 | - | 2485 | = | -22 | * | (148 | / | 535) | = | -6.08598131 | ||
| 5 | 63614 | 2472 | - | 2528 | = | -56 | * | (133 | / | 535) | = | -13.92149528 | ||
| 6 | 63616 | 2524 | - | 2552 | = | -28 | * | (124 | / | 535) | = | -6.4897196 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Discovery School of the Arts | -28 | ||||||||||||
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 | 65408 | 2421 | - | 2436 | = | -15 | * | (126 | / | 528) | = | -3.57954545 | ||
| 4 | 65411 | 2460 | - | 2485 | = | -25 | * | (133 | / | 528) | = | -6.29734848 | ||
| 5 | 65413 | 2465 | - | 2528 | = | -63 | * | (136 | / | 528) | = | -16.22727269 | ||
| 6 | 65414 | 2518 | - | 2552 | = | -34 | * | (133 | / | 528) | = | -8.56439393 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Discovery School of the Arts | -35 | ||||||||||||
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 | 65492 | 2441 | - | 2436 | = | 5 | * | (123 | / | 536) | = | 1.14738806 | ||
| 4 | 65495 | 2442 | - | 2485 | = | -43 | * | (140 | / | 536) | = | -11.23134325 | ||
| 5 | 65496 | 2476 | - | 2528 | = | -52 | * | (133 | / | 536) | = | -12.90298506 | ||
| 6 | 65499 | 2525 | - | 2552 | = | -27 | * | (140 | / | 536) | = | -7.05223878 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Discovery School of the Arts | -30 | ||||||||||||
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 | 65882 | 2449 | - | 2436 | = | 13 | * | (122 | / | 528) | = | 3.00378788 | ||
| 4 | 65883 | 2466 | - | 2485 | = | -19 | * | (129 | / | 528) | = | -4.64204544 | ||
| 5 | 65884 | 2489 | - | 2528 | = | -39 | * | (144 | / | 528) | = | -10.63636361 | ||
| 6 | 65885 | 2522 | - | 2552 | = | -30 | * | (133 | / | 528) | = | -7.55681817 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Discovery School of the Arts | -20 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -35 | -28 | -35 | -30 | -20 | -148.0 | -29.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -11.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -47.6
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 | 70% | 69% | 70% | 66% | 71% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Victor Elementary 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.
Discovery School of the Arts math proficiency
Zero+ meets standard.
55% less $meal
55% less $meal
58% less $meal
58% less $meal
63% 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.