Magee Academy of Arts & Sciences (Data source)
Source data for Magee Academy of Arts & Sciences
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 | 696931 | 2365 | - | 2436 | = | -71 | * | (76 | / | 226) | = | -23.87610614 | ||
| 4 | 696934 | 2421 | - | 2485 | = | -64 | * | (69 | / | 226) | = | -19.53982298 | ||
| 5 | 696935 | 2427 | - | 2528 | = | -101 | * | (81 | / | 226) | = | -36.19911498 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Magee Academy of Arts & Sciences | -80 | ||||||||||||
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 | 22029 | 2409 | - | 2436 | = | -27 | * | (67 | / | 222) | = | -8.14864863 | ||
| 4 | 22030 | 2410 | - | 2485 | = | -75 | * | (84 | / | 222) | = | -28.37837835 | ||
| 5 | 22032 | 2465 | - | 2528 | = | -63 | * | (71 | / | 222) | = | -20.1486486 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Magee Academy of Arts & Sciences | -57 | ||||||||||||
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 | 22450 | 2385 | - | 2436 | = | -51 | * | (89 | / | 242) | = | -18.75619835 | ||
| 4 | 22451 | 2458 | - | 2485 | = | -27 | * | (69 | / | 242) | = | -7.69834708 | ||
| 5 | 22454 | 2447 | - | 2528 | = | -81 | * | (84 | / | 242) | = | -28.11570248 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Magee Academy of Arts & Sciences | -55 | ||||||||||||
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 | 22439 | 2403 | - | 2436 | = | -33 | * | (53 | / | 214) | = | -8.17289718 | ||
| 4 | 22441 | 2417 | - | 2485 | = | -68 | * | (92 | / | 214) | = | -29.23364486 | ||
| 5 | 22443 | 2481 | - | 2528 | = | -47 | * | (69 | / | 214) | = | -15.15420558 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Magee Academy of Arts & Sciences | -53 | ||||||||||||
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 | 22622 | 2418 | - | 2436 | = | -18 | * | (54 | / | 204) | = | -4.76470588 | ||
| 4 | 22623 | 2434 | - | 2485 | = | -51 | * | (57 | / | 204) | = | -14.24999996 | ||
| 5 | 22624 | 2466 | - | 2528 | = | -62 | * | (93 | / | 204) | = | -28.26470582 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Magee Academy of Arts & Sciences | -47 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -80 | -57 | -55 | -53 | -47 | -292.0 | -58.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -22.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -94.4
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 | 91% | 79% | 80% | 76% | 76% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
El Rancho 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.
Magee Academy of Arts & Sciences math proficiency
Zero+ meets standard.
75% less $meal
69% less $meal
68% less $meal
67% less $meal
66% 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.