Alexander Rose Elementary (Data source)
Source data for Alexander Rose 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 | 2735033 | 2441 | - | 2436 | = | 5 | * | (72 | / | 259) | = | 1.38996139 | ||
| 4 | 2735034 | 2473 | - | 2485 | = | -12 | * | (63 | / | 259) | = | -2.91891892 | ||
| 5 | 2735037 | 2494 | - | 2528 | = | -34 | * | (59 | / | 259) | = | -7.74517372 | ||
| 6 | 2735038 | 2550 | - | 2552 | = | -2 | * | (65 | / | 259) | = | -0.5019305 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Alexander Rose Elementary | -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 | 83152 | 2445 | - | 2436 | = | 9 | * | (56 | / | 251) | = | 2.00796812 | ||
| 4 | 83154 | 2484 | - | 2485 | = | -1 | * | (72 | / | 251) | = | -0.28685259 | ||
| 5 | 83156 | 2491 | - | 2528 | = | -37 | * | (65 | / | 251) | = | -9.58167329 | ||
| 6 | 83158 | 2537 | - | 2552 | = | -15 | * | (58 | / | 251) | = | -3.46613546 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Alexander Rose Elementary | -11 | ||||||||||||
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 | 85488 | 2430 | - | 2436 | = | -6 | * | (63 | / | 258) | = | -1.46511628 | ||
| 4 | 85491 | 2488 | - | 2485 | = | 3 | * | (56 | / | 258) | = | 0.65116279 | ||
| 5 | 85493 | 2522 | - | 2528 | = | -6 | * | (76 | / | 258) | = | -1.76744186 | ||
| 6 | 85494 | 2518 | - | 2552 | = | -34 | * | (63 | / | 258) | = | -8.30232556 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Alexander Rose Elementary | -11 | ||||||||||||
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 | 85708 | 2425 | - | 2436 | = | -11 | * | (57 | / | 247) | = | -2.53846153 | ||
| 4 | 85710 | 2474 | - | 2485 | = | -11 | * | (61 | / | 247) | = | -2.71659918 | ||
| 5 | 85712 | 2535 | - | 2528 | = | 7 | * | (55 | / | 247) | = | 1.55870445 | ||
| 6 | 85714 | 2558 | - | 2552 | = | 6 | * | (74 | / | 247) | = | 1.79757085 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Alexander Rose Elementary | -2 | ||||||||||||
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 | 86303 | 2452 | - | 2436 | = | 16 | * | (65 | / | 258) | = | 4.03100774 | ||
| 4 | 86304 | 2473 | - | 2485 | = | -12 | * | (61 | / | 258) | = | -2.8372093 | ||
| 5 | 86305 | 2542 | - | 2528 | = | 14 | * | (66 | / | 258) | = | 3.58139534 | ||
| 6 | 86306 | 2557 | - | 2552 | = | 5 | * | (66 | / | 258) | = | 1.27906977 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Alexander Rose Elementary | 6 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -10 | -11 | -11 | -2 | 6 | -28.0 | -5.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 15.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -26.6
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 | 58% | 58% | 63% | 57% | 57% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Milpitas Unified school district | County of Santa Clara
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.
Alexander Rose Elementary math proficiency
Zero+ meets standard.
46% less $meal
48% less $meal
59% less $meal
54% less $meal
52% 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.