Stonebrae Elementary (Data source)
Source data for Stonebrae 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 | 42388 | 2410 | - | 2436 | = | -26 | * | (118 | / | 405) | = | -7.57530862 | ||
| 4 | 42391 | 2449 | - | 2485 | = | -36 | * | (100 | / | 405) | = | -8.88888888 | ||
| 5 | 42392 | 2488 | - | 2528 | = | -40 | * | (105 | / | 405) | = | -10.37037036 | ||
| 6 | 42395 | 2474 | - | 2552 | = | -78 | * | (82 | / | 405) | = | -15.79259253 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Stonebrae Elementary | -43 | ||||||||||||
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 | 1134 | 2406 | - | 2436 | = | -30 | * | (98 | / | 406) | = | -7.2413793 | ||
| 4 | 1135 | 2458 | - | 2485 | = | -27 | * | (109 | / | 406) | = | -7.24876846 | ||
| 5 | 1137 | 2484 | - | 2528 | = | -44 | * | (106 | / | 406) | = | -11.48768469 | ||
| 6 | 1140 | 2509 | - | 2552 | = | -43 | * | (93 | / | 406) | = | -9.84975368 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Stonebrae Elementary | -36 | ||||||||||||
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 | 1160 | 2416 | - | 2436 | = | -20 | * | (89 | / | 375) | = | -4.74666666 | ||
| 4 | 1162 | 2445 | - | 2485 | = | -40 | * | (96 | / | 375) | = | -10.24 | ||
| 5 | 1164 | 2499 | - | 2528 | = | -29 | * | (103 | / | 375) | = | -7.96533331 | ||
| 6 | 1165 | 2507 | - | 2552 | = | -45 | * | (87 | / | 375) | = | -10.44 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Stonebrae 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 | 1183 | 2431 | - | 2436 | = | -5 | * | (85 | / | 373) | = | -1.13941019 | ||
| 4 | 1185 | 2436 | - | 2485 | = | -49 | * | (91 | / | 373) | = | -11.95442357 | ||
| 5 | 1187 | 2482 | - | 2528 | = | -46 | * | (96 | / | 373) | = | -11.83914208 | ||
| 6 | 1189 | 2510 | - | 2552 | = | -42 | * | (101 | / | 373) | = | -11.37265412 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Stonebrae Elementary | -36 | ||||||||||||
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 | 1212 | 2402 | - | 2436 | = | -34 | * | (105 | / | 360) | = | -9.91666664 | ||
| 4 | 1213 | 2466 | - | 2485 | = | -19 | * | (88 | / | 360) | = | -4.64444444 | ||
| 5 | 1214 | 2483 | - | 2528 | = | -45 | * | (92 | / | 360) | = | -11.49999998 | ||
| 6 | 1215 | 2503 | - | 2552 | = | -49 | * | (75 | / | 360) | = | -10.20833332 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Stonebrae Elementary | -36 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -43 | -36 | -33 | -36 | -36 | -184.0 | -36.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -27.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -45.8
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 | 52% | 53% | 49% | 47% | 55% |
| 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.
Stonebrae Elementary math proficiency
Zero+ meets standard.
45% less $meal
44% less $meal
41% less $meal
42% less $meal
48% 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.