Marguerita Elementary (Data source)
Source data for Marguerita 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 | 1211957 | 2451 | - | 2436 | = | 15 | * | (61 | / | 413) | = | 2.21549636 | ||
4 | 1211959 | 2463 | - | 2485 | = | -22 | * | (59 | / | 413) | = | -3.14285712 | ||
5 | 1211961 | 2510 | - | 2528 | = | -18 | * | (69 | / | 413) | = | -3.00726391 | ||
6 | 1211963 | 2521 | - | 2552 | = | -31 | * | (71 | / | 413) | = | -5.32929779 | ||
7 | 1211965 | 2513 | - | 2567 | = | -54 | * | (62 | / | 413) | = | -8.10653751 | ||
8 | 1211967 | 2550 | - | 2586 | = | -36 | * | (91 | / | 413) | = | -7.93220339 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Marguerita Elementary | -25 |
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 | 37668 | 2436 | - | 2436 | = | 0 | * | (65 | / | 404) | = | 0.0 | ||
4 | 37670 | 2476 | - | 2485 | = | -9 | * | (58 | / | 404) | = | -1.2920792 | ||
5 | 37672 | 2484 | - | 2528 | = | -44 | * | (68 | / | 404) | = | -7.40594056 | ||
6 | 37673 | 2543 | - | 2552 | = | -9 | * | (73 | / | 404) | = | -1.62623762 | ||
7 | 37676 | 2570 | - | 2567 | = | 3 | * | (76 | / | 404) | = | 0.56435643 | ||
8 | 37677 | 2548 | - | 2586 | = | -38 | * | (64 | / | 404) | = | -6.01980196 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Marguerita Elementary | -16 |
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 | 38523 | 2432 | - | 2436 | = | -4 | * | (55 | / | 409) | = | -0.53789731 | ||
4 | 38525 | 2483 | - | 2485 | = | -2 | * | (64 | / | 409) | = | -0.31295843 | ||
5 | 38527 | 2508 | - | 2528 | = | -20 | * | (68 | / | 409) | = | -3.32518336 | ||
6 | 38530 | 2517 | - | 2552 | = | -35 | * | (72 | / | 409) | = | -6.16136917 | ||
7 | 38531 | 2587 | - | 2567 | = | 20 | * | (70 | / | 409) | = | 3.42298288 | ||
8 | 38534 | 2581 | - | 2586 | = | -5 | * | (80 | / | 409) | = | -0.97799511 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Marguerita Elementary | -8 |
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 | 38499 | 2445 | - | 2436 | = | 9 | * | (57 | / | 405) | = | 1.26666666 | ||
4 | 38501 | 2480 | - | 2485 | = | -5 | * | (65 | / | 405) | = | -0.80246914 | ||
5 | 38503 | 2543 | - | 2528 | = | 15 | * | (67 | / | 405) | = | 2.48148147 | ||
6 | 38505 | 2520 | - | 2552 | = | -32 | * | (73 | / | 405) | = | -5.76790122 | ||
7 | 38507 | 2557 | - | 2567 | = | -10 | * | (73 | / | 405) | = | -1.80246913 | ||
8 | 38509 | 2600 | - | 2586 | = | 14 | * | (70 | / | 405) | = | 2.41975308 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Marguerita Elementary | -2 |
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 | 38699 | 2446 | - | 2436 | = | 10 | * | (82 | / | 423) | = | 1.93853427 | ||
4 | 38700 | 2487 | - | 2485 | = | 2 | * | (55 | / | 423) | = | 0.26004728 | ||
5 | 38701 | 2516 | - | 2528 | = | -12 | * | (66 | / | 423) | = | -1.87234042 | ||
6 | 38702 | 2514 | - | 2552 | = | -38 | * | (75 | / | 423) | = | -6.73758863 | ||
7 | 38703 | 2567 | - | 2567 | = | 0 | * | (71 | / | 423) | = | 0.0 | ||
8 | 38704 | 2574 | - | 2586 | = | -12 | * | (74 | / | 423) | = | -2.09929078 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Marguerita Elementary | -9 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-25 | -16 | -8 | -2 | -9 | -60.0 | -12.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 12.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -36.0
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 | 73% | 78% | 68% | 68% | 62% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alhambra 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.
Marguerita Elementary math proficiency
Zero+ meets standard.
61% less $meal
63% less $meal
53% less $meal
57% less $meal
54% 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.