Wilcox Elementary (Data source)
Source data for Wilcox 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 | 1038230 | 2381 | - | 2436 | = | -55 | * | (126 | / | 351) | = | -19.74358969 | ||
| 4 | 1038231 | 2397 | - | 2485 | = | -88 | * | (96 | / | 351) | = | -24.06837602 | ||
| 5 | 1038234 | 2420 | - | 2528 | = | -108 | * | (129 | / | 351) | = | -39.69230764 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wilcox Elementary | -84 | ||||||||||||
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 | 32602 | 2401 | - | 2436 | = | -35 | * | (102 | / | 324) | = | -11.01851849 | ||
| 4 | 32605 | 2449 | - | 2485 | = | -36 | * | (125 | / | 324) | = | -13.88888888 | ||
| 5 | 32606 | 2477 | - | 2528 | = | -51 | * | (97 | / | 324) | = | -15.26851852 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wilcox Elementary | -40 | ||||||||||||
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 | 33175 | 2409 | - | 2436 | = | -27 | * | (99 | / | 310) | = | -8.62258063 | ||
| 4 | 33177 | 2448 | - | 2485 | = | -37 | * | (102 | / | 310) | = | -12.17419355 | ||
| 5 | 33178 | 2480 | - | 2528 | = | -48 | * | (109 | / | 310) | = | -16.87741934 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wilcox Elementary | -38 | ||||||||||||
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 | 33192 | 2392 | - | 2436 | = | -44 | * | (86 | / | 277) | = | -13.66064982 | ||
| 4 | 33194 | 2412 | - | 2485 | = | -73 | * | (91 | / | 277) | = | -23.98194942 | ||
| 5 | 33196 | 2494 | - | 2528 | = | -34 | * | (100 | / | 277) | = | -12.27436822 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wilcox Elementary | -50 | ||||||||||||
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 | 33368 | 2401 | - | 2436 | = | -35 | * | (98 | / | 281) | = | -12.20640568 | ||
| 4 | 33369 | 2438 | - | 2485 | = | -47 | * | (89 | / | 281) | = | -14.88612097 | ||
| 5 | 33370 | 2491 | - | 2528 | = | -37 | * | (94 | / | 281) | = | -12.37722416 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wilcox Elementary | -39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -84 | -40 | -38 | -50 | -39 | -251.0 | -50.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 6.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -107.2
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 | 88% | 90% | 88% | 80% | 89% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Montebello 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.
Wilcox Elementary math proficiency
Zero+ meets standard.
76% less $meal
79% less $meal
79% less $meal
73% less $meal
81% 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.