Washington Elementary (Data source)
Source data for Washington 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 | 2603297 | 2472 | - | 2436 | = | 36 | * | (99 | / | 388) | = | 9.185567 | ||
| 4 | 2603298 | 2506 | - | 2485 | = | 21 | * | (96 | / | 388) | = | 5.19587628 | ||
| 5 | 2603301 | 2518 | - | 2528 | = | -10 | * | (97 | / | 388) | = | -2.5 | ||
| 6 | 2603302 | 2583 | - | 2552 | = | 31 | * | (96 | / | 388) | = | 7.67010308 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Washington Elementary | 20 | ||||||||||||
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 | 79396 | 2501 | - | 2436 | = | 65 | * | (81 | / | 368) | = | 14.30706518 | ||
| 4 | 79397 | 2524 | - | 2485 | = | 39 | * | (98 | / | 368) | = | 10.38586953 | ||
| 5 | 79400 | 2547 | - | 2528 | = | 19 | * | (94 | / | 368) | = | 4.85326086 | ||
| 6 | 79401 | 2545 | - | 2552 | = | -7 | * | (95 | / | 368) | = | -1.80706521 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Washington Elementary | 28 | ||||||||||||
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 | 81565 | 2473 | - | 2436 | = | 37 | * | (97 | / | 380) | = | 9.44473681 | ||
| 4 | 81566 | 2544 | - | 2485 | = | 59 | * | (89 | / | 380) | = | 13.81842103 | ||
| 5 | 81568 | 2533 | - | 2528 | = | 5 | * | (103 | / | 380) | = | 1.35526316 | ||
| 6 | 81571 | 2575 | - | 2552 | = | 23 | * | (91 | / | 380) | = | 5.50789473 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Washington Elementary | 30 | ||||||||||||
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 | 81756 | 2479 | - | 2436 | = | 43 | * | (86 | / | 358) | = | 10.32960891 | ||
| 4 | 81757 | 2528 | - | 2485 | = | 43 | * | (86 | / | 358) | = | 10.32960891 | ||
| 5 | 81760 | 2569 | - | 2528 | = | 41 | * | (86 | / | 358) | = | 9.84916198 | ||
| 6 | 81761 | 2577 | - | 2552 | = | 25 | * | (100 | / | 358) | = | 6.9832402 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Washington Elementary | 37 | ||||||||||||
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 | 82275 | 2469 | - | 2436 | = | 33 | * | (87 | / | 358) | = | 8.01955305 | ||
| 4 | 82276 | 2524 | - | 2485 | = | 39 | * | (99 | / | 358) | = | 10.78491617 | ||
| 5 | 82277 | 2556 | - | 2528 | = | 28 | * | (88 | / | 358) | = | 6.88268154 | ||
| 6 | 82278 | 2608 | - | 2552 | = | 56 | * | (84 | / | 358) | = | 13.13966478 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Washington Elementary | 39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 20 | 28 | 30 | 37 | 39 | 154.0 | 30.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 51.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 9.8
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 | 31% | 33% | 33% | 40% | 41% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Barbara Unified school district | County of Santa Barbara
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.
Washington Elementary math proficiency
Zero+ meets standard.
25% less $meal
28% less $meal
26% less $meal
36% less $meal
36% 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.