Willowbrook Middle (Data source)
Source data for Willowbrook Middle
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 |
||
| 6 | 1167806 | 2421 | - | 2552 | = | -131 | * | (96 | / | 360) | = | -34.93333325 | ||
| 7 | 1167809 | 2419 | - | 2567 | = | -148 | * | (130 | / | 360) | = | -53.44444443 | ||
| 8 | 1167810 | 2430 | - | 2586 | = | -156 | * | (134 | / | 360) | = | -58.06666663 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Willowbrook Middle | -146 | ||||||||||||
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 |
||
| 6 | 36381 | 2421 | - | 2552 | = | -131 | * | (61 | / | 279) | = | -28.64157695 | ||
| 7 | 36384 | 2435 | - | 2567 | = | -132 | * | (91 | / | 279) | = | -43.05376337 | ||
| 8 | 36385 | 2440 | - | 2586 | = | -146 | * | (127 | / | 279) | = | -66.45878127 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Willowbrook Middle | -138 | ||||||||||||
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 |
||
| 6 | 37145 | 2417 | - | 2552 | = | -135 | * | (68 | / | 229) | = | -40.08733619 | ||
| 7 | 37147 | 2434 | - | 2567 | = | -133 | * | (71 | / | 229) | = | -41.23580784 | ||
| 8 | 37149 | 2434 | - | 2586 | = | -152 | * | (90 | / | 229) | = | -59.7379912 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Willowbrook Middle | -141 | ||||||||||||
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 |
||
| 6 | 37096 | 2419 | - | 2552 | = | -133 | * | (66 | / | 234) | = | -37.51282051 | ||
| 7 | 37097 | 2439 | - | 2567 | = | -128 | * | (84 | / | 234) | = | -45.94871782 | ||
| 8 | 37100 | 2429 | - | 2586 | = | -157 | * | (84 | / | 234) | = | -56.35897421 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Willowbrook Middle | -140 | ||||||||||||
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 |
||
| 6 | 37298 | 2547 | - | 2552 | = | -5 | * | (63 | / | 168) | = | -1.875 | ||
| 7 | 37299 | 2446 | - | 2567 | = | -121 | * | (50 | / | 168) | = | -36.01190469 | ||
| 8 | 37300 | 2492 | - | 2586 | = | -94 | * | (55 | / | 168) | = | -30.77380949 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Willowbrook Middle | -69 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -146 | -138 | -141 | -140 | -69 | -634.0 | -126.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -30.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -222.8
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 | 81% | 91% | 82% | 86% | 92% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Compton 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.
Willowbrook Middle math proficiency
Zero+ meets standard.
78% less $meal
87% less $meal
78% less $meal
83% less $meal
83% 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.
Intermediate/Middle Schools (Public) schools in Compton Unified (7)
| Bunche Middle | Davis Middle | Enterprise Middle |
| Roosevelt Middle | Walton Middle | Whaley Middle |
| Willowbrook Middle |