Mary Casey Black Elementary (Data source)
Source data for Mary Casey Black 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 | 188170 | 2402 | - | 2436 | = | -34 | * | (100 | / | 259) | = | -13.12741312 | ||
| 4 | 188171 | 2440 | - | 2485 | = | -45 | * | (93 | / | 259) | = | -16.15830116 | ||
| 5 | 188174 | 2478 | - | 2528 | = | -50 | * | (66 | / | 259) | = | -12.7413127 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Mary Casey Black Elementary | -42 | ||||||||||||
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 | 5610 | 2399 | - | 2436 | = | -37 | * | (95 | / | 286) | = | -12.29020978 | ||
| 4 | 5611 | 2457 | - | 2485 | = | -28 | * | (97 | / | 286) | = | -9.49650349 | ||
| 5 | 5614 | 2469 | - | 2528 | = | -59 | * | (94 | / | 286) | = | -19.39160835 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Mary Casey Black Elementary | -41 | ||||||||||||
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 | 5745 | 2399 | - | 2436 | = | -37 | * | (120 | / | 316) | = | -14.0506329 | ||
| 4 | 5748 | 2469 | - | 2485 | = | -16 | * | (97 | / | 316) | = | -4.9113924 | ||
| 5 | 5750 | 2484 | - | 2528 | = | -44 | * | (99 | / | 316) | = | -13.78481012 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Mary Casey Black Elementary | -33 | ||||||||||||
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 | 5739 | 2409 | - | 2436 | = | -27 | * | (99 | / | 326) | = | -8.19938649 | ||
| 4 | 5742 | 2456 | - | 2485 | = | -29 | * | (130 | / | 326) | = | -11.56441717 | ||
| 5 | 5743 | 2481 | - | 2528 | = | -47 | * | (97 | / | 326) | = | -13.98466256 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Mary Casey Black Elementary | -34 | ||||||||||||
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 | 5803 | 2427 | - | 2436 | = | -9 | * | (112 | / | 342) | = | -2.94736842 | ||
| 4 | 5804 | 2446 | - | 2485 | = | -39 | * | (98 | / | 342) | = | -11.17543857 | ||
| 5 | 5805 | 2479 | - | 2528 | = | -49 | * | (132 | / | 342) | = | -18.91228069 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Mary Casey Black Elementary | -33 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -42 | -41 | -33 | -34 | -33 | -183.0 | -36.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -24.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -48.6
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 | 55% | 47% | 43% | 46% | 43% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Brentwood Union Elementary school district | County of Contra Costa
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.
Mary Casey Black Elementary math proficiency
Zero+ meets standard.
46% less $meal
38% less $meal
33% less $meal
39% less $meal
36% 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.
Elementary School (Public) schools in Brentwood Union Elementary (8)
| Brentwood Elementary | Garin Elementary | Loma Vista Elementary |
| Marsh Creek Elementary | Mary Casey Black Elementary | Pioneer Elementary |
| R. Paul Krey Elementary | Ron Nunn Elementary |