Gregg Anderson Academy (Data source)
Source data for Gregg Anderson Academy
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 | 1144538 | 2478 | - | 2436 | = | 42 | * | (119 | / | 488) | = | 10.24180328 | ||
| 4 | 1144539 | 2527 | - | 2485 | = | 42 | * | (128 | / | 488) | = | 11.0163934 | ||
| 5 | 1144542 | 2529 | - | 2528 | = | 1 | * | (127 | / | 488) | = | 0.2602459 | ||
| 6 | 1144543 | 2587 | - | 2552 | = | 35 | * | (114 | / | 488) | = | 8.1762295 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Gregg Anderson Academy | 30 | ||||||||||||
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 | 35620 | 2496 | - | 2436 | = | 60 | * | (120 | / | 469) | = | 15.35181234 | ||
| 4 | 35621 | 2525 | - | 2485 | = | 40 | * | (125 | / | 469) | = | 10.6609808 | ||
| 5 | 35623 | 2560 | - | 2528 | = | 32 | * | (127 | / | 469) | = | 8.66524518 | ||
| 6 | 35626 | 2565 | - | 2552 | = | 13 | * | (97 | / | 469) | = | 2.68869935 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Gregg Anderson Academy | 37 | ||||||||||||
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 | 36322 | 2493 | - | 2436 | = | 57 | * | (119 | / | 489) | = | 13.87116563 | ||
| 4 | 36324 | 2518 | - | 2485 | = | 33 | * | (128 | / | 489) | = | 8.6380368 | ||
| 5 | 36326 | 2553 | - | 2528 | = | 25 | * | (125 | / | 489) | = | 6.39059303 | ||
| 6 | 36327 | 2573 | - | 2552 | = | 21 | * | (117 | / | 489) | = | 5.02453986 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Gregg Anderson Academy | 34 | ||||||||||||
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 | 36307 | 2512 | - | 2436 | = | 76 | * | (118 | / | 465) | = | 19.28602144 | ||
| 4 | 36309 | 2523 | - | 2485 | = | 38 | * | (124 | / | 465) | = | 10.13333331 | ||
| 5 | 36311 | 2537 | - | 2528 | = | 9 | * | (125 | / | 465) | = | 2.41935484 | ||
| 6 | 36313 | 2565 | - | 2552 | = | 13 | * | (98 | / | 465) | = | 2.73978494 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Gregg Anderson Academy | 35 | ||||||||||||
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 | 36475 | 2507 | - | 2436 | = | 71 | * | (118 | / | 490) | = | 17.09795915 | ||
| 4 | 36476 | 2540 | - | 2485 | = | 55 | * | (124 | / | 490) | = | 13.91836732 | ||
| 5 | 36477 | 2545 | - | 2528 | = | 17 | * | (124 | / | 490) | = | 4.30204081 | ||
| 6 | 36478 | 2566 | - | 2552 | = | 14 | * | (124 | / | 490) | = | 3.54285714 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Gregg Anderson Academy | 39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 30 | 37 | 34 | 35 | 39 | 175.0 | 35.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 44.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 26.0
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 | 18% | 19% | 19% | 23% | 24% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Westside Union 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.
Gregg Anderson Academy math proficiency
Zero+ meets standard.
14% less $meal
16% less $meal
15% less $meal
20% less $meal
21% 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.