Stowers(Cecil B.) Elementary (Data source)
Source data for Stowers(Cecil B.) 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 | 610190 | 2451 | - | 2436 | = | 15 | * | (94 | / | 379) | = | 3.72031662 | ||
| 4 | 610193 | 2491 | - | 2485 | = | 6 | * | (91 | / | 379) | = | 1.44063324 | ||
| 5 | 610194 | 2533 | - | 2528 | = | 5 | * | (92 | / | 379) | = | 1.21372032 | ||
| 6 | 610197 | 2562 | - | 2552 | = | 10 | * | (102 | / | 379) | = | 2.69129287 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Stowers(Cecil B.) Elementary | 9 | ||||||||||||
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 | 19545 | 2470 | - | 2436 | = | 34 | * | (105 | / | 396) | = | 9.01515151 | ||
| 4 | 19547 | 2502 | - | 2485 | = | 17 | * | (99 | / | 396) | = | 4.25 | ||
| 5 | 19549 | 2551 | - | 2528 | = | 23 | * | (96 | / | 396) | = | 5.57575757 | ||
| 6 | 19552 | 2566 | - | 2552 | = | 14 | * | (96 | / | 396) | = | 3.39393939 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Stowers(Cecil B.) Elementary | 22 | ||||||||||||
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 | 19840 | 2474 | - | 2436 | = | 38 | * | (93 | / | 401) | = | 8.81296756 | ||
| 4 | 19841 | 2510 | - | 2485 | = | 25 | * | (114 | / | 401) | = | 7.1072319 | ||
| 5 | 19844 | 2553 | - | 2528 | = | 25 | * | (98 | / | 401) | = | 6.10972568 | ||
| 6 | 19845 | 2603 | - | 2552 | = | 51 | * | (96 | / | 401) | = | 12.2094763 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Stowers(Cecil B.) Elementary | 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 | 19838 | 2461 | - | 2436 | = | 25 | * | (82 | / | 396) | = | 5.17676768 | ||
| 4 | 19840 | 2509 | - | 2485 | = | 24 | * | (97 | / | 396) | = | 5.87878786 | ||
| 5 | 19842 | 2538 | - | 2528 | = | 10 | * | (123 | / | 396) | = | 3.1060606 | ||
| 6 | 19844 | 2582 | - | 2552 | = | 30 | * | (94 | / | 396) | = | 7.12121211 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Stowers(Cecil B.) Elementary | 21 | ||||||||||||
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 | 20023 | 2487 | - | 2436 | = | 51 | * | (87 | / | 396) | = | 11.20454542 | ||
| 4 | 20024 | 2514 | - | 2485 | = | 29 | * | (87 | / | 396) | = | 6.3712121 | ||
| 5 | 20025 | 2566 | - | 2528 | = | 38 | * | (95 | / | 396) | = | 9.11616158 | ||
| 6 | 20026 | 2572 | - | 2552 | = | 20 | * | (127 | / | 396) | = | 6.4141414 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Stowers(Cecil B.) Elementary | 33 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 9 | 22 | 34 | 21 | 33 | 119.0 | 23.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 53.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -6.2
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 | 26% | 28% | 26% | 33% | 30% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
ABC 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.
Stowers(Cecil B.) Elementary math proficiency
Zero+ meets standard.
17% less $meal
19% less $meal
17% less $meal
25% less $meal
23% 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.