Marengo Elementary (Data source)
Source data for Marengo 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 | 1116716 | 2480 | - | 2436 | = | 44 | * | (119 | / | 400) | = | 13.09 | ||
| 4 | 1116717 | 2548 | - | 2485 | = | 63 | * | (143 | / | 400) | = | 22.5225 | ||
| 5 | 1116720 | 2600 | - | 2528 | = | 72 | * | (138 | / | 400) | = | 24.84 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Marengo Elementary | 60 | ||||||||||||
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 | 34879 | 2496 | - | 2436 | = | 60 | * | (117 | / | 395) | = | 17.77215186 | ||
| 4 | 34882 | 2531 | - | 2485 | = | 46 | * | (121 | / | 395) | = | 14.0911392 | ||
| 5 | 34883 | 2596 | - | 2528 | = | 68 | * | (157 | / | 395) | = | 27.02784807 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Marengo Elementary | 59 | ||||||||||||
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 | 35537 | 2504 | - | 2436 | = | 68 | * | (154 | / | 404) | = | 25.92079202 | ||
| 4 | 35540 | 2548 | - | 2485 | = | 63 | * | (129 | / | 404) | = | 20.11633659 | ||
| 5 | 35541 | 2587 | - | 2528 | = | 59 | * | (121 | / | 404) | = | 17.67079205 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Marengo Elementary | 64 | ||||||||||||
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 | 35549 | 2517 | - | 2436 | = | 81 | * | (118 | / | 397) | = | 24.07556674 | ||
| 4 | 35552 | 2558 | - | 2485 | = | 73 | * | (150 | / | 397) | = | 27.58186397 | ||
| 5 | 35553 | 2600 | - | 2528 | = | 72 | * | (129 | / | 397) | = | 23.39546594 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Marengo Elementary | 75 | ||||||||||||
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 | 35716 | 2517 | - | 2436 | = | 81 | * | (125 | / | 398) | = | 25.43969843 | ||
| 4 | 35717 | 2550 | - | 2485 | = | 65 | * | (120 | / | 398) | = | 19.59798991 | ||
| 5 | 35718 | 2612 | - | 2528 | = | 84 | * | (153 | / | 398) | = | 32.29145724 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Marengo Elementary | 77 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 60 | 59 | 64 | 75 | 77 | 335.0 | 67.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 91.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 43.0
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 | 14% | 14% | 13% | 17% | 17% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
South Pasadena 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.
Marengo Elementary math proficiency
Zero+ meets standard.
10% less $meal
11% less $meal
9% less $meal
16% less $meal
15% 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.
Elementary School (Public) schools in South Pasadena Unified (3)
| Arroyo Vista Elementary | Marengo Elementary | Monterey Hills Elementary |