Albert F. Biella Elementary (Data source)
Source data for Albert F. Biella 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 | 2889005 | 2416 | - | 2436 | = | -20 | * | (63 | / | 239) | = | -5.27196652 | ||
| 4 | 2889006 | 2415 | - | 2485 | = | -70 | * | (50 | / | 239) | = | -14.6443514 | ||
| 5 | 2889009 | 2454 | - | 2528 | = | -74 | * | (73 | / | 239) | = | -22.60251042 | ||
| 6 | 2889010 | 2450 | - | 2552 | = | -102 | * | (53 | / | 239) | = | -22.61924684 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Albert F. Biella Elementary | -65 | ||||||||||||
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 | 88455 | 2406 | - | 2436 | = | -30 | * | (46 | / | 214) | = | -6.44859813 | ||
| 4 | 88457 | 2438 | - | 2485 | = | -47 | * | (54 | / | 214) | = | -11.85981306 | ||
| 5 | 88459 | 2446 | - | 2528 | = | -82 | * | (48 | / | 214) | = | -18.39252333 | ||
| 6 | 88461 | 2465 | - | 2552 | = | -87 | * | (66 | / | 214) | = | -26.83177562 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Albert F. Biella Elementary | -64 | ||||||||||||
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 | 91013 | 2405 | - | 2436 | = | -31 | * | (51 | / | 191) | = | -8.27748689 | ||
| 4 | 91015 | 2425 | - | 2485 | = | -60 | * | (43 | / | 191) | = | -13.5078534 | ||
| 5 | 91017 | 2474 | - | 2528 | = | -54 | * | (54 | / | 191) | = | -15.2670157 | ||
| 6 | 91020 | 2476 | - | 2552 | = | -76 | * | (43 | / | 191) | = | -17.10994764 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Albert F. Biella Elementary | -54 | ||||||||||||
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 | 91208 | 0 | - | 2436 | = | * | (0 | / | 0) | = | ||||
| 4 | 91211 | 0 | - | 2485 | = | * | (0 | / | 0) | = | ||||
| 5 | 91212 | 0 | - | 2528 | = | * | (0 | / | 0) | = | ||||
| 6 | 91215 | 0 | - | 2552 | = | * | (0 | / | 0) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Albert F. Biella Elementary | |||||||||||||
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 | 91869 | 2413 | - | 2436 | = | -23 | * | (54 | / | 195) | = | -6.36923075 | ||
| 4 | 91870 | 2449 | - | 2485 | = | -36 | * | (55 | / | 195) | = | -10.15384615 | ||
| 5 | 91871 | 2471 | - | 2528 | = | -57 | * | (46 | / | 195) | = | -13.4461538 | ||
| 6 | 91872 | 2471 | - | 2552 | = | -81 | * | (40 | / | 195) | = | -16.61538461 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Albert F. Biella Elementary | -47 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -64 | -54 | -47 | -230.0 | -46.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.5
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -81.5
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% | 70% | 67% | 67% | 65% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Rosa Elementary school district | County of Sonoma
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.
Albert F. Biella Elementary math proficiency
Zero+ meets standard.
64% less $meal
56% less $meal
53% less $meal
58% 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.