Sakamoto Elementary (Data source)
Source data for Sakamoto 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 | 2692919 | 2411 | - | 2436 | = | -25 | * | (80 | / | 318) | = | -6.28930818 | ||
| 4 | 2692922 | 2465 | - | 2485 | = | -20 | * | (82 | / | 318) | = | -5.1572327 | ||
| 5 | 2692923 | 2539 | - | 2528 | = | 11 | * | (86 | / | 318) | = | 2.97484276 | ||
| 6 | 2692926 | 2562 | - | 2552 | = | 10 | * | (70 | / | 318) | = | 2.20125786 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sakamoto Elementary | -6 | ||||||||||||
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 | 82037 | 2441 | - | 2436 | = | 5 | * | (82 | / | 330) | = | 1.24242424 | ||
| 4 | 82038 | 2450 | - | 2485 | = | -35 | * | (77 | / | 330) | = | -8.16666666 | ||
| 5 | 82041 | 2512 | - | 2528 | = | -16 | * | (86 | / | 330) | = | -4.16969696 | ||
| 6 | 82042 | 2550 | - | 2552 | = | -2 | * | (85 | / | 330) | = | -0.51515151 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sakamoto Elementary | -12 | ||||||||||||
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 | 84322 | 2442 | - | 2436 | = | 6 | * | (78 | / | 315) | = | 1.48571428 | ||
| 4 | 84325 | 2486 | - | 2485 | = | 1 | * | (88 | / | 315) | = | 0.27936508 | ||
| 5 | 84327 | 2486 | - | 2528 | = | -42 | * | (69 | / | 315) | = | -9.2 | ||
| 6 | 84328 | 2547 | - | 2552 | = | -5 | * | (80 | / | 315) | = | -1.26984127 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sakamoto Elementary | -9 | ||||||||||||
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 | 84541 | 2442 | - | 2436 | = | 6 | * | (86 | / | 317) | = | 1.62776025 | ||
| 4 | 84542 | 2490 | - | 2485 | = | 5 | * | (82 | / | 317) | = | 1.29337539 | ||
| 5 | 84545 | 2523 | - | 2528 | = | -5 | * | (80 | / | 317) | = | -1.26182965 | ||
| 6 | 84546 | 2538 | - | 2552 | = | -14 | * | (69 | / | 317) | = | -3.04731861 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sakamoto Elementary | -1 | ||||||||||||
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 | 85137 | 2452 | - | 2436 | = | 16 | * | (106 | / | 376) | = | 4.51063829 | ||
| 4 | 85138 | 2509 | - | 2485 | = | 24 | * | (97 | / | 376) | = | 6.19148935 | ||
| 5 | 85139 | 2522 | - | 2528 | = | -6 | * | (88 | / | 376) | = | -1.40425532 | ||
| 6 | 85140 | 2557 | - | 2552 | = | 5 | * | (85 | / | 376) | = | 1.13031915 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sakamoto Elementary | 10 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -6 | -12 | -9 | -1 | 10 | -18.0 | -3.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 20.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -27.6
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 | 20% | 18% | 15% | 17% | 15% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Oak Grove Elementary school district | County of Santa Clara
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.
Sakamoto Elementary math proficiency
Zero+ meets standard.
14% less $meal
14% less $meal
10% less $meal
13% less $meal
11% 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.