Victoria Elementary (Data source)
Source data for Victoria 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 | 2025257 | 2413 | - | 2436 | = | -23 | * | (101 | / | 285) | = | -8.15087717 | ||
| 4 | 2025258 | 2444 | - | 2485 | = | -41 | * | (94 | / | 285) | = | -13.522807 | ||
| 5 | 2025261 | 2448 | - | 2528 | = | -80 | * | (90 | / | 285) | = | -25.26315784 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Victoria Elementary | -47 | ||||||||||||
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 | 62271 | 2371 | - | 2436 | = | -65 | * | (66 | / | 249) | = | -17.2289156 | ||
| 4 | 62273 | 2474 | - | 2485 | = | -11 | * | (93 | / | 249) | = | -4.10843373 | ||
| 5 | 62274 | 2483 | - | 2528 | = | -45 | * | (90 | / | 249) | = | -16.26506024 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Victoria 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 | 64054 | 2390 | - | 2436 | = | -46 | * | (90 | / | 255) | = | -16.2352941 | ||
| 4 | 64056 | 2451 | - | 2485 | = | -34 | * | (71 | / | 255) | = | -9.46666665 | ||
| 5 | 64059 | 2486 | - | 2528 | = | -42 | * | (94 | / | 255) | = | -15.4823529 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Victoria Elementary | -41 | ||||||||||||
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 | 64159 | 2401 | - | 2436 | = | -35 | * | (87 | / | 236) | = | -12.90254235 | ||
| 4 | 64162 | 2459 | - | 2485 | = | -26 | * | (85 | / | 236) | = | -9.36440677 | ||
| 5 | 64163 | 2468 | - | 2528 | = | -60 | * | (64 | / | 236) | = | -16.2711864 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Victoria Elementary | -39 | ||||||||||||
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 | 64527 | 2405 | - | 2436 | = | -31 | * | (91 | / | 253) | = | -11.15019761 | ||
| 4 | 64528 | 2442 | - | 2485 | = | -43 | * | (85 | / | 253) | = | -14.4466403 | ||
| 5 | 64529 | 2471 | - | 2528 | = | -57 | * | (77 | / | 253) | = | -17.34782608 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Victoria Elementary | -43 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -47 | -38 | -41 | -39 | -43 | -208.0 | -41.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -32.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -50.6
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 | 94% | 91% | 90% | 92% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Redlands Unified 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.
Victoria Elementary math proficiency
Zero+ meets standard.
88% less $meal
82% less $meal
80% less $meal
87% 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.