Ambassador-Global Leadership (Data source)
Source data for Ambassador-Global Leadership
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 | 822137 | 2405 | - | 2552 | = | -147 | * | (66 | / | 267) | = | -36.33707862 | ||
| 7 | 822138 | 2448 | - | 2567 | = | -119 | * | (66 | / | 267) | = | -29.41573031 | ||
| 8 | 822141 | 2449 | - | 2586 | = | -137 | * | (73 | / | 267) | = | -37.45692874 | ||
| 11 | 822142 | 2538 | - | 2628 | = | -90 | * | (62 | / | 267) | = | -20.89887633 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ambassador-Global Leadership | -124 | ||||||||||||
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 | 25732 | 2448 | - | 2552 | = | -104 | * | (85 | / | 295) | = | -29.96610167 | ||
| 7 | 25734 | 2446 | - | 2567 | = | -121 | * | (66 | / | 295) | = | -27.07118637 | ||
| 8 | 25736 | 2435 | - | 2586 | = | -151 | * | (72 | / | 295) | = | -36.8542372 | ||
| 11 | 25738 | 2541 | - | 2628 | = | -87 | * | (72 | / | 295) | = | -21.23389825 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ambassador-Global Leadership | -115 | ||||||||||||
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 | 26212 | 2424 | - | 2552 | = | -128 | * | (82 | / | 321) | = | -32.69781926 | ||
| 7 | 26214 | 2461 | - | 2567 | = | -106 | * | (78 | / | 321) | = | -25.75700932 | ||
| 8 | 26215 | 2424 | - | 2586 | = | -162 | * | (67 | / | 321) | = | -33.81308404 | ||
| 11 | 26217 | 2490 | - | 2628 | = | -138 | * | (94 | / | 321) | = | -40.41121482 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ambassador-Global Leadership | -133 | ||||||||||||
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 | 26183 | 2427 | - | 2552 | = | -125 | * | (73 | / | 293) | = | -31.14334463 | ||
| 7 | 26185 | 2456 | - | 2567 | = | -111 | * | (80 | / | 293) | = | -30.30716716 | ||
| 8 | 26187 | 2482 | - | 2586 | = | -104 | * | (80 | / | 293) | = | -28.39590437 | ||
| 11 | 26189 | 2528 | - | 2628 | = | -100 | * | (60 | / | 293) | = | -20.4778156 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ambassador-Global Leadership | -110 | ||||||||||||
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 | 26317 | 2424 | - | 2552 | = | -128 | * | (59 | / | 271) | = | -27.86715866 | ||
| 7 | 26318 | 2442 | - | 2567 | = | -125 | * | (72 | / | 271) | = | -33.210332 | ||
| 8 | 26319 | 2459 | - | 2586 | = | -127 | * | (79 | / | 271) | = | -37.02214021 | ||
| 11 | 26320 | 2530 | - | 2628 | = | -98 | * | (61 | / | 271) | = | -22.0590405 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ambassador-Global Leadership | -120 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -124 | -115 | -133 | -110 | -120 | -602.0 | -120.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -96.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -144.4
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 | 79% | 86% | 86% | 92% | 92% |
| 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.
Ambassador-Global Leadership math proficiency
Zero+ meets standard.
78% less $meal
75% less $meal
79% less $meal
87% less $meal
88% 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.