Lomita Math/Science/Technology Magnet (Data source)
Source data for Lomita Math/Science/Technology Magnet
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 | 925292 | 2437 | - | 2436 | = | 1 | * | (162 | / | 528) | = | 0.30681818 | ||
| 4 | 925293 | 2487 | - | 2485 | = | 2 | * | (182 | / | 528) | = | 0.68939394 | ||
| 5 | 925296 | 2496 | - | 2528 | = | -32 | * | (184 | / | 528) | = | -11.15151514 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lomita Math/Science/Technology Magnet | -10 | ||||||||||||
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 | 29252 | 2457 | - | 2436 | = | 21 | * | (163 | / | 542) | = | 6.31549815 | ||
| 4 | 29255 | 2481 | - | 2485 | = | -4 | * | (190 | / | 542) | = | -1.40221402 | ||
| 5 | 29257 | 2514 | - | 2528 | = | -14 | * | (189 | / | 542) | = | -4.88191882 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lomita Math/Science/Technology Magnet | 0 | ||||||||||||
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 | 29818 | 2454 | - | 2436 | = | 18 | * | (168 | / | 525) | = | 5.76 | ||
| 4 | 29819 | 2485 | - | 2485 | = | 0 | * | (171 | / | 525) | = | 0.0 | ||
| 5 | 29821 | 2500 | - | 2528 | = | -28 | * | (186 | / | 525) | = | -9.91999999 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lomita Math/Science/Technology Magnet | -4 | ||||||||||||
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 | 29866 | 2459 | - | 2436 | = | 23 | * | (167 | / | 517) | = | 7.42940038 | ||
| 4 | 29868 | 2488 | - | 2485 | = | 3 | * | (178 | / | 517) | = | 1.03288201 | ||
| 5 | 29870 | 2514 | - | 2528 | = | -14 | * | (172 | / | 517) | = | -4.65764023 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lomita Math/Science/Technology Magnet | 4 | ||||||||||||
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 | 30042 | 2467 | - | 2436 | = | 31 | * | (160 | / | 506) | = | 9.80237152 | ||
| 4 | 30043 | 2507 | - | 2485 | = | 22 | * | (171 | / | 506) | = | 7.43478261 | ||
| 5 | 30044 | 2523 | - | 2528 | = | -5 | * | (175 | / | 506) | = | -1.72924901 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lomita Math/Science/Technology Magnet | 16 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -10 | 0 | -4 | 4 | 16 | 6.0 | 1.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 34.5
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.5
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 | 60% | 62% | 65% | 68% | 68% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Angeles 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.
Lomita Math/Science/Technology Magnet math proficiency
Zero+ meets standard.
45% less $meal
48% less $meal
47% less $meal
55% 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.