Irwin Academy of Performing Arts (Data source)
Source data for Irwin Academy of Performing 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 | 2067097 | 2355 | - | 2436 | = | -81 | * | (115 | / | 414) | = | -22.49999994 | ||
| 4 | 2067099 | 2403 | - | 2485 | = | -82 | * | (108 | / | 414) | = | -21.39130433 | ||
| 5 | 2067101 | 2411 | - | 2528 | = | -117 | * | (98 | / | 414) | = | -27.69565208 | ||
| 6 | 2067102 | 2435 | - | 2552 | = | -117 | * | (93 | / | 414) | = | -26.28260868 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Irwin Academy of Performing Arts | -98 | ||||||||||||
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 | 63511 | 2362 | - | 2436 | = | -74 | * | (107 | / | 421) | = | -18.80760091 | ||
| 4 | 63513 | 2393 | - | 2485 | = | -92 | * | (111 | / | 421) | = | -24.25653204 | ||
| 5 | 63514 | 2419 | - | 2528 | = | -109 | * | (99 | / | 421) | = | -25.63182895 | ||
| 6 | 63517 | 2417 | - | 2552 | = | -135 | * | (104 | / | 421) | = | -33.34916853 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Irwin Academy of Performing Arts | -102 | ||||||||||||
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 | 65308 | 2368 | - | 2436 | = | -68 | * | (86 | / | 399) | = | -14.6566416 | ||
| 4 | 65310 | 2397 | - | 2485 | = | -88 | * | (102 | / | 399) | = | -22.49624054 | ||
| 5 | 65312 | 2382 | - | 2528 | = | -146 | * | (117 | / | 399) | = | -42.81202997 | ||
| 6 | 65314 | 2437 | - | 2552 | = | -115 | * | (94 | / | 399) | = | -27.09273178 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Irwin Academy of Performing Arts | -107 | ||||||||||||
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 | 65392 | 2368 | - | 2436 | = | -68 | * | (109 | / | 403) | = | -18.39205955 | ||
| 4 | 65394 | 2376 | - | 2485 | = | -109 | * | (89 | / | 403) | = | -24.07196025 | ||
| 5 | 65396 | 2411 | - | 2528 | = | -117 | * | (98 | / | 403) | = | -28.45161283 | ||
| 6 | 65398 | 2434 | - | 2552 | = | -118 | * | (107 | / | 403) | = | -31.33002471 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Irwin Academy of Performing Arts | -102 | ||||||||||||
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 | 65782 | 2361 | - | 2436 | = | -75 | * | (104 | / | 382) | = | -20.4188481 | ||
| 4 | 65783 | 2394 | - | 2485 | = | -91 | * | (96 | / | 382) | = | -22.8691099 | ||
| 5 | 65784 | 2424 | - | 2528 | = | -104 | * | (88 | / | 382) | = | -23.95811517 | ||
| 6 | 65785 | 2423 | - | 2552 | = | -129 | * | (94 | / | 382) | = | -31.74345544 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Irwin Academy of Performing Arts | -99 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -98 | -102 | -107 | -102 | -99 | -508.0 | -101.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -92.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.6
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 | 89% | 89% | 90% | 89% | 89% |
| 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.
Irwin Academy of Performing Arts math proficiency
Zero+ meets standard.
84% less $meal
84% less $meal
85% less $meal
85% less $meal
85% 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.