Schafer Park Elementary (Data source)
Source data for Schafer Park 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 | 49904 | 2367 | - | 2436 | = | -69 | * | (112 | / | 377) | = | -20.49867373 | ||
| 4 | 49905 | 2415 | - | 2485 | = | -70 | * | (101 | / | 377) | = | -18.75331563 | ||
| 5 | 49908 | 2434 | - | 2528 | = | -94 | * | (81 | / | 377) | = | -20.19628643 | ||
| 6 | 49909 | 2435 | - | 2552 | = | -117 | * | (83 | / | 377) | = | -25.75862067 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Schafer Park Elementary | -85 | ||||||||||||
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 | 1335 | 2401 | - | 2436 | = | -35 | * | (101 | / | 390) | = | -9.06410253 | ||
| 4 | 1337 | 2406 | - | 2485 | = | -79 | * | (118 | / | 390) | = | -23.90256406 | ||
| 5 | 1340 | 2434 | - | 2528 | = | -94 | * | (92 | / | 390) | = | -22.17435889 | ||
| 6 | 1341 | 2485 | - | 2552 | = | -67 | * | (79 | / | 390) | = | -13.57179483 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Schafer Park Elementary | -69 | ||||||||||||
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 | 1374 | 2394 | - | 2436 | = | -42 | * | (106 | / | 397) | = | -11.21410576 | ||
| 4 | 1376 | 2432 | - | 2485 | = | -53 | * | (100 | / | 397) | = | -13.3501259 | ||
| 5 | 1377 | 2445 | - | 2528 | = | -83 | * | (110 | / | 397) | = | -22.99748106 | ||
| 6 | 1380 | 2483 | - | 2552 | = | -69 | * | (81 | / | 397) | = | -14.07808559 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Schafer Park Elementary | -62 | ||||||||||||
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 | 1404 | 2403 | - | 2436 | = | -33 | * | (106 | / | 425) | = | -8.23058821 | ||
| 4 | 1405 | 2449 | - | 2485 | = | -36 | * | (117 | / | 425) | = | -9.91058821 | ||
| 5 | 1408 | 2481 | - | 2528 | = | -47 | * | (95 | / | 425) | = | -10.50588232 | ||
| 6 | 1409 | 2482 | - | 2552 | = | -70 | * | (107 | / | 425) | = | -17.62352935 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Schafer Park Elementary | -46 | ||||||||||||
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 | 1430 | 2427 | - | 2436 | = | -9 | * | (108 | / | 429) | = | -2.26573426 | ||
| 4 | 1431 | 2446 | - | 2485 | = | -39 | * | (111 | / | 429) | = | -10.09090906 | ||
| 5 | 1432 | 2470 | - | 2528 | = | -58 | * | (122 | / | 429) | = | -16.49417247 | ||
| 6 | 1433 | 2497 | - | 2552 | = | -55 | * | (88 | / | 429) | = | -11.28205128 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Schafer Park Elementary | -40 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -85 | -69 | -62 | -46 | -40 | -302.0 | -60.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -6.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -114.4
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 | 83% | 84% | 79% | 68% | 72% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Hayward Unified 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.
Schafer Park Elementary math proficiency
Zero+ meets standard.
75% less $meal
74% less $meal
67% less $meal
62% less $meal
68% 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.