Bowman Elementary (Data source)
Source data for Bowman 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 | 44785 | 2388 | - | 2436 | = | -48 | * | (80 | / | 274) | = | -14.0145985 | ||
| 4 | 44786 | 2405 | - | 2485 | = | -80 | * | (68 | / | 274) | = | -19.85401456 | ||
| 5 | 44789 | 2420 | - | 2528 | = | -108 | * | (61 | / | 274) | = | -24.0437956 | ||
| 6 | 44790 | 2447 | - | 2552 | = | -105 | * | (65 | / | 274) | = | -24.90875909 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bowman Elementary | -83 | ||||||||||||
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 | 1205 | 2375 | - | 2436 | = | -61 | * | (43 | / | 230) | = | -11.40434778 | ||
| 4 | 1208 | 2403 | - | 2485 | = | -82 | * | (71 | / | 230) | = | -25.31304346 | ||
| 5 | 1209 | 2419 | - | 2528 | = | -109 | * | (59 | / | 230) | = | -27.96086955 | ||
| 6 | 1211 | 2449 | - | 2552 | = | -103 | * | (57 | / | 230) | = | -25.52608686 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bowman Elementary | -90 | ||||||||||||
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 | 1243 | 2410 | - | 2436 | = | -26 | * | (40 | / | 203) | = | -5.12315268 | ||
| 4 | 1245 | 2391 | - | 2485 | = | -94 | * | (40 | / | 203) | = | -18.5221674 | ||
| 5 | 1248 | 2424 | - | 2528 | = | -104 | * | (63 | / | 203) | = | -32.27586201 | ||
| 6 | 1250 | 2437 | - | 2552 | = | -115 | * | (60 | / | 203) | = | -33.99014773 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bowman Elementary | -90 | ||||||||||||
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 | 1273 | 2370 | - | 2436 | = | -66 | * | (54 | / | 187) | = | -19.0588235 | ||
| 4 | 1275 | 2400 | - | 2485 | = | -85 | * | (41 | / | 187) | = | -18.63636356 | ||
| 5 | 1277 | 2408 | - | 2528 | = | -120 | * | (37 | / | 187) | = | -23.74331544 | ||
| 6 | 1279 | 2470 | - | 2552 | = | -82 | * | (55 | / | 187) | = | -24.11764705 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bowman Elementary | -86 | ||||||||||||
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 | 1300 | 2397 | - | 2436 | = | -39 | * | (33 | / | 149) | = | -8.63758389 | ||
| 4 | 1301 | 2403 | - | 2485 | = | -82 | * | (43 | / | 149) | = | -23.66442953 | ||
| 5 | 1302 | 2403 | - | 2528 | = | -125 | * | (40 | / | 149) | = | -33.55704688 | ||
| 6 | 1303 | 2447 | - | 2552 | = | -105 | * | (33 | / | 149) | = | -23.25503355 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bowman Elementary | -89 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -83 | -90 | -90 | -86 | -89 | -438.0 | -87.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -78.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -96.6
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 | 78% | 83% | 72% | 74% | 76% |
| 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.
Bowman Elementary math proficiency
Zero+ meets standard.
66% less $meal
68% less $meal
61% less $meal
66% less $meal
66% 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.