Corona Elementary (Data source)
Source data for Corona 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 | 2009079 | 2349 | - | 2436 | = | -87 | * | (96 | / | 308) | = | -27.11688306 | ||
| 4 | 2009080 | 2402 | - | 2485 | = | -83 | * | (110 | / | 308) | = | -29.64285713 | ||
| 5 | 2009083 | 2429 | - | 2528 | = | -99 | * | (102 | / | 308) | = | -32.78571427 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Corona Elementary | -90 | ||||||||||||
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 | 61798 | 2392 | - | 2436 | = | -44 | * | (68 | / | 272) | = | -11.0 | ||
| 4 | 61800 | 2445 | - | 2485 | = | -40 | * | (92 | / | 272) | = | -13.52941176 | ||
| 5 | 61802 | 2430 | - | 2528 | = | -98 | * | (106 | / | 272) | = | -38.19117644 | ||
| 6 | 61805 | 0 | - | 2552 | = | * | (6 | / | 272) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Corona Elementary | -63 | ||||||||||||
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 | 63588 | 2393 | - | 2436 | = | -43 | * | (104 | / | 270) | = | -16.56296296 | ||
| 4 | 63590 | 2463 | - | 2485 | = | -22 | * | (65 | / | 270) | = | -5.29629628 | ||
| 5 | 63592 | 2428 | - | 2528 | = | -100 | * | (96 | / | 270) | = | -35.5555555 | ||
| 6 | 63595 | 0 | - | 2552 | = | * | (0 | / | 270) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Corona Elementary | -57 | ||||||||||||
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 | 63692 | 2402 | - | 2436 | = | -34 | * | (79 | / | 243) | = | -11.05349792 | ||
| 4 | 63694 | 2456 | - | 2485 | = | -29 | * | (93 | / | 243) | = | -11.09876542 | ||
| 5 | 63696 | 2475 | - | 2528 | = | -53 | * | (65 | / | 243) | = | -14.17695468 | ||
| 6 | 63698 | 0 | - | 2552 | = | * | (0 | / | 243) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Corona Elementary | -36 | ||||||||||||
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 | 63962 | 2401 | - | 2436 | = | -35 | * | (93 | / | 269) | = | -12.10037175 | ||
| 4 | 63963 | 2470 | - | 2485 | = | -15 | * | (83 | / | 269) | = | -4.62825278 | ||
| 5 | 63964 | 2487 | - | 2528 | = | -41 | * | (90 | / | 269) | = | -13.71747209 | ||
| 6 | 63965 | 0 | - | 2552 | = | * | (0 | / | 269) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Corona Elementary | -30 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -90 | -63 | -57 | -36 | -30 | -276.0 | -55.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 13.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -124.2
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 | 93% | 90% | 87% | 85% | 93% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Ontario-Montclair school district | County of San Bernardino
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.
Corona Elementary math proficiency
Zero+ meets standard.
83% less $meal
84% less $meal
80% less $meal
80% less $meal
86% 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.