Urban Montessori Charter (Data source)
Source data for Urban Montessori Charter
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 | 3188 | 2392 | - | 2436 | = | -44 | * | (49 | / | 76) | = | -28.36842105 | ||
| 4 | 3191 | 2399 | - | 2485 | = | -86 | * | (27 | / | 76) | = | -30.5526315 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Urban Montessori Charter | -59 | ||||||||||||
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 | 72 | 2413 | - | 2436 | = | -23 | * | (60 | / | 123) | = | -11.21951219 | ||
| 4 | 74 | 2450 | - | 2485 | = | -35 | * | (39 | / | 123) | = | -11.09756095 | ||
| 5 | 75 | 2439 | - | 2528 | = | -89 | * | (24 | / | 123) | = | -17.36585364 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Urban Montessori Charter | -40 | ||||||||||||
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 | 71 | 2390 | - | 2436 | = | -46 | * | (61 | / | 170) | = | -16.50588233 | ||
| 4 | 74 | 2455 | - | 2485 | = | -30 | * | (56 | / | 170) | = | -9.88235292 | ||
| 5 | 75 | 2463 | - | 2528 | = | -65 | * | (35 | / | 170) | = | -13.38235288 | ||
| 6 | 77 | 2488 | - | 2552 | = | -64 | * | (18 | / | 170) | = | -6.77647053 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Urban Montessori Charter | -47 | ||||||||||||
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 | 72 | 2405 | - | 2436 | = | -31 | * | (67 | / | 197) | = | -10.54314718 | ||
| 4 | 74 | 2427 | - | 2485 | = | -58 | * | (48 | / | 197) | = | -14.13197968 | ||
| 5 | 76 | 2498 | - | 2528 | = | -30 | * | (44 | / | 197) | = | -6.70050759 | ||
| 6 | 78 | 2511 | - | 2552 | = | -41 | * | (24 | / | 197) | = | -4.99492385 | ||
| 7 | 80 | 2515 | - | 2567 | = | -52 | * | (14 | / | 197) | = | -3.69543143 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Urban Montessori Charter | -40 | ||||||||||||
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 | 80 | 2377 | - | 2436 | = | -59 | * | (66 | / | 193) | = | -20.17616575 | ||
| 4 | 81 | 2447 | - | 2485 | = | -38 | * | (45 | / | 193) | = | -8.8601036 | ||
| 5 | 82 | 2455 | - | 2528 | = | -73 | * | (36 | / | 193) | = | -13.61658028 | ||
| 6 | 83 | 2518 | - | 2552 | = | -34 | * | (19 | / | 193) | = | -3.34715023 | ||
| 7 | 84 | 2540 | - | 2567 | = | -27 | * | (19 | / | 193) | = | -2.65803107 | ||
| 8 | 85 | 0 | - | 2586 | = | * | (8 | / | 193) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Urban Montessori Charter | -49 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -59 | -40 | -47 | -40 | -49 | -235.0 | -47.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
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 | 36% | 34% | 27% | 28% | 30% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alameda County Office of Education school district | County of Alameda
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.