Willow Elementary (Data source)
Source data for Willow 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 | 659682 | 2458 | - | 2436 | = | 22 | * | (41 | / | 191) | = | 4.72251307 | ||
| 4 | 659683 | 2493 | - | 2485 | = | 8 | * | (41 | / | 191) | = | 1.71727748 | ||
| 5 | 659685 | 2553 | - | 2528 | = | 25 | * | (64 | / | 191) | = | 8.37696335 | ||
| 6 | 659687 | 2567 | - | 2552 | = | 15 | * | (45 | / | 191) | = | 3.53403141 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Willow Elementary | 18 | ||||||||||||
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 | 20957 | 2444 | - | 2436 | = | 8 | * | (66 | / | 218) | = | 2.42201834 | ||
| 4 | 20959 | 2497 | - | 2485 | = | 12 | * | (48 | / | 218) | = | 2.64220183 | ||
| 5 | 20962 | 2542 | - | 2528 | = | 14 | * | (43 | / | 218) | = | 2.76146788 | ||
| 6 | 20963 | 2574 | - | 2552 | = | 22 | * | (61 | / | 218) | = | 6.15596329 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Willow Elementary | 14 | ||||||||||||
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 | 21313 | 2423 | - | 2436 | = | -13 | * | (53 | / | 220) | = | -3.13181817 | ||
| 4 | 21315 | 2480 | - | 2485 | = | -5 | * | (68 | / | 220) | = | -1.54545455 | ||
| 5 | 21318 | 2523 | - | 2528 | = | -5 | * | (57 | / | 220) | = | -1.29545455 | ||
| 6 | 21319 | 2524 | - | 2552 | = | -28 | * | (42 | / | 220) | = | -5.34545452 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Willow Elementary | -11 | ||||||||||||
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 | 21295 | 2463 | - | 2436 | = | 27 | * | (46 | / | 196) | = | 6.33673468 | ||
| 4 | 21297 | 2487 | - | 2485 | = | 2 | * | (49 | / | 196) | = | 0.5 | ||
| 5 | 21299 | 2509 | - | 2528 | = | -19 | * | (60 | / | 196) | = | -5.81632651 | ||
| 6 | 21300 | 2555 | - | 2552 | = | 3 | * | (41 | / | 196) | = | 0.62755102 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Willow Elementary | 2 | ||||||||||||
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 | 21465 | 2470 | - | 2436 | = | 34 | * | (47 | / | 198) | = | 8.07070706 | ||
| 4 | 21466 | 2482 | - | 2485 | = | -3 | * | (43 | / | 198) | = | -0.65151515 | ||
| 5 | 21467 | 2500 | - | 2528 | = | -28 | * | (54 | / | 198) | = | -7.63636362 | ||
| 6 | 21468 | 2529 | - | 2552 | = | -23 | * | (54 | / | 198) | = | -6.27272726 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Willow Elementary | -6 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 18 | 14 | -11 | 2 | -6 | 17.0 | 3.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 39.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -32.6
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 | 53% | 52% | 53% | 49% | 52% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Charter Oak Unified school district | County of Los Angeles
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.
Willow Elementary math proficiency
Zero+ meets standard.
45% less $meal
44% less $meal
45% less $meal
41% less $meal
47% 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.
Elementary School (Public) schools in Charter Oak Unified (5)
| Badillo Elementary | Cedargrove Elementary | Glen Oak Elementary |
| Washington Elementary | Willow Elementary |