Mariposa Elementary (Data source)
Source data for Mariposa 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 | 741996 | 2386 | - | 2436 | = | -50 | * | (85 | / | 508) | = | -8.3661417 | ||
| 4 | 741997 | 2367 | - | 2485 | = | -118 | * | (96 | / | 508) | = | -22.29921249 | ||
| 5 | 742000 | 2398 | - | 2528 | = | -130 | * | (102 | / | 508) | = | -26.10236213 | ||
| 6 | 742001 | 2418 | - | 2552 | = | -134 | * | (83 | / | 508) | = | -21.89370068 | ||
| 7 | 742004 | 2458 | - | 2567 | = | -109 | * | (76 | / | 508) | = | -16.30708659 | ||
| 8 | 742005 | 2439 | - | 2586 | = | -147 | * | (66 | / | 508) | = | -19.09842507 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Mariposa Elementary | -114 | ||||||||||||
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 | 23353 | 2395 | - | 2436 | = | -41 | * | (84 | / | 324) | = | -10.62962962 | ||
| 4 | 23354 | 2406 | - | 2485 | = | -79 | * | (87 | / | 324) | = | -21.21296292 | ||
| 5 | 23356 | 2407 | - | 2528 | = | -121 | * | (78 | / | 324) | = | -29.12962954 | ||
| 6 | 23358 | 2386 | - | 2552 | = | -166 | * | (75 | / | 324) | = | -38.42592585 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Mariposa Elementary | -99 | ||||||||||||
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 | 23808 | 2412 | - | 2436 | = | -24 | * | (83 | / | 324) | = | -6.14814814 | ||
| 4 | 23811 | 2393 | - | 2485 | = | -92 | * | (84 | / | 324) | = | -23.85185183 | ||
| 5 | 23813 | 2421 | - | 2528 | = | -107 | * | (78 | / | 324) | = | -25.75925918 | ||
| 6 | 23814 | 2386 | - | 2552 | = | -166 | * | (79 | / | 324) | = | -40.47530856 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Mariposa Elementary | -96 | ||||||||||||
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 | 23829 | 2367 | - | 2436 | = | -69 | * | (84 | / | 313) | = | -18.51757188 | ||
| 4 | 23830 | 2426 | - | 2485 | = | -59 | * | (76 | / | 313) | = | -14.32587856 | ||
| 5 | 23833 | 2412 | - | 2528 | = | -116 | * | (89 | / | 313) | = | -32.98402545 | ||
| 6 | 23834 | 2404 | - | 2552 | = | -148 | * | (64 | / | 313) | = | -30.26198076 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Mariposa Elementary | -96 | ||||||||||||
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 | 24005 | 2401 | - | 2436 | = | -35 | * | (74 | / | 324) | = | -7.99382714 | ||
| 4 | 24006 | 2389 | - | 2485 | = | -96 | * | (78 | / | 324) | = | -23.11111104 | ||
| 5 | 24007 | 2438 | - | 2528 | = | -90 | * | (87 | / | 324) | = | -24.16666662 | ||
| 6 | 24008 | 2396 | - | 2552 | = | -156 | * | (85 | / | 324) | = | -40.92592592 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Mariposa Elementary | -96 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -114 | -99 | -96 | -96 | -96 | -501.0 | -100.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -79.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -121.2
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 | 89% | 92% | 91% | 92% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lancaster Elementary 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.
Mariposa Elementary math proficiency
Zero+ meets standard.
86% less $meal
89% less $meal
83% less $meal
88% less $meal
87% 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.