Ybarra Academy for the Arts and Technology (Data source)
Source data for Ybarra Academy for the Arts and Technology
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 | 1186498 | 2482 | - | 2436 | = | 46 | * | (65 | / | 437) | = | 6.84210523 | ||
| 4 | 1186499 | 2483 | - | 2485 | = | -2 | * | (76 | / | 437) | = | -0.34782609 | ||
| 5 | 1186502 | 2530 | - | 2528 | = | 2 | * | (78 | / | 437) | = | 0.3569794 | ||
| 6 | 1186503 | 2559 | - | 2552 | = | 7 | * | (85 | / | 437) | = | 1.36155606 | ||
| 7 | 1186506 | 2573 | - | 2567 | = | 6 | * | (63 | / | 437) | = | 0.86498855 | ||
| 8 | 1186507 | 2591 | - | 2586 | = | 5 | * | (70 | / | 437) | = | 0.80091533 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ybarra Academy for the Arts and Technology | 10 | ||||||||||||
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 | 36932 | 2454 | - | 2436 | = | 18 | * | (74 | / | 461) | = | 2.88937093 | ||
| 4 | 36933 | 2524 | - | 2485 | = | 39 | * | (69 | / | 461) | = | 5.83731018 | ||
| 5 | 36935 | 2529 | - | 2528 | = | 1 | * | (81 | / | 461) | = | 0.17570499 | ||
| 6 | 36937 | 2550 | - | 2552 | = | -2 | * | (76 | / | 461) | = | -0.329718 | ||
| 7 | 36939 | 2566 | - | 2567 | = | -1 | * | (96 | / | 461) | = | -0.20824295 | ||
| 8 | 36942 | 2613 | - | 2586 | = | 27 | * | (65 | / | 461) | = | 3.80694141 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ybarra Academy for the Arts and Technology | 12 | ||||||||||||
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 | 37712 | 2452 | - | 2436 | = | 16 | * | (78 | / | 481) | = | 2.59459459 | ||
| 4 | 37714 | 2481 | - | 2485 | = | -4 | * | (73 | / | 481) | = | -0.6070686 | ||
| 5 | 37715 | 2559 | - | 2528 | = | 31 | * | (70 | / | 481) | = | 4.5114345 | ||
| 6 | 37717 | 2527 | - | 2552 | = | -25 | * | (90 | / | 481) | = | -4.67775468 | ||
| 7 | 37720 | 2558 | - | 2567 | = | -9 | * | (78 | / | 481) | = | -1.45945946 | ||
| 8 | 37722 | 2585 | - | 2586 | = | -1 | * | (92 | / | 481) | = | -0.19126819 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ybarra Academy for the Arts and Technology | 0 | ||||||||||||
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 | 37655 | 2453 | - | 2436 | = | 17 | * | (78 | / | 466) | = | 2.84549356 | ||
| 4 | 37656 | 2487 | - | 2485 | = | 2 | * | (81 | / | 466) | = | 0.34763948 | ||
| 5 | 37659 | 2510 | - | 2528 | = | -18 | * | (75 | / | 466) | = | -2.89699571 | ||
| 6 | 37660 | 2568 | - | 2552 | = | 16 | * | (70 | / | 466) | = | 2.40343347 | ||
| 7 | 37663 | 2538 | - | 2567 | = | -29 | * | (87 | / | 466) | = | -5.41416306 | ||
| 8 | 37664 | 2595 | - | 2586 | = | 9 | * | (75 | / | 466) | = | 1.44849785 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ybarra Academy for the Arts and Technology | -1 | ||||||||||||
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 | 37867 | 2479 | - | 2436 | = | 43 | * | (64 | / | 493) | = | 5.58215009 | ||
| 4 | 37868 | 2488 | - | 2485 | = | 3 | * | (83 | / | 493) | = | 0.50507099 | ||
| 5 | 37869 | 2504 | - | 2528 | = | -24 | * | (97 | / | 493) | = | -4.72210951 | ||
| 6 | 37870 | 2534 | - | 2552 | = | -18 | * | (72 | / | 493) | = | -2.62880323 | ||
| 7 | 37871 | 2579 | - | 2567 | = | 12 | * | (89 | / | 493) | = | 2.1663286 | ||
| 8 | 37872 | 2577 | - | 2586 | = | -9 | * | (88 | / | 493) | = | -1.60649087 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ybarra Academy for the Arts and Technology | -1 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 10 | 12 | 0 | -1 | -1 | 20.0 | 4.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 23.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -13.0
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 | 48% | 49% | 52% | 60% | 58% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rowland 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.
Ybarra Academy for the Arts and Technology math proficiency
Zero+ meets standard.
32% less $meal
36% less $meal
39% less $meal
51% 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.