Melbourne (Ella P.) Elementary (Data source)
Source data for Melbourne (Ella P.) 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 | 605820 | 2398 | - | 2436 | = | -38 | * | (85 | / | 315) | = | -10.25396822 | ||
| 4 | 605823 | 2433 | - | 2485 | = | -52 | * | (75 | / | 315) | = | -12.38095238 | ||
| 5 | 605824 | 2458 | - | 2528 | = | -70 | * | (70 | / | 315) | = | -15.55555554 | ||
| 6 | 605827 | 2483 | - | 2552 | = | -69 | * | (85 | / | 315) | = | -18.61904756 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Melbourne (Ella P.) Elementary | -57 | ||||||||||||
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 | 19425 | 2383 | - | 2436 | = | -53 | * | (76 | / | 309) | = | -13.03559868 | ||
| 4 | 19428 | 2440 | - | 2485 | = | -45 | * | (83 | / | 309) | = | -12.08737863 | ||
| 5 | 19430 | 2464 | - | 2528 | = | -64 | * | (82 | / | 309) | = | -16.98381875 | ||
| 6 | 19432 | 2476 | - | 2552 | = | -76 | * | (68 | / | 309) | = | -16.72491902 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Melbourne (Ella P.) 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 | 19720 | 2401 | - | 2436 | = | -35 | * | (63 | / | 292) | = | -7.55136984 | ||
| 4 | 19722 | 2413 | - | 2485 | = | -72 | * | (72 | / | 292) | = | -17.75342462 | ||
| 5 | 19723 | 2443 | - | 2528 | = | -85 | * | (81 | / | 292) | = | -23.5787671 | ||
| 6 | 19726 | 2511 | - | 2552 | = | -41 | * | (76 | / | 292) | = | -10.67123285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Melbourne (Ella P.) Elementary | -60 | ||||||||||||
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 | 19718 | 2425 | - | 2436 | = | -11 | * | (79 | / | 290) | = | -2.99655172 | ||
| 4 | 19720 | 2431 | - | 2485 | = | -54 | * | (55 | / | 290) | = | -10.24137929 | ||
| 5 | 19722 | 2446 | - | 2528 | = | -82 | * | (71 | / | 290) | = | -20.07586205 | ||
| 6 | 19724 | 2495 | - | 2552 | = | -57 | * | (85 | / | 290) | = | -16.70689654 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Melbourne (Ella P.) Elementary | -50 | ||||||||||||
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 | 19903 | 2419 | - | 2436 | = | -17 | * | (63 | / | 267) | = | -4.01123595 | ||
| 4 | 19904 | 2450 | - | 2485 | = | -35 | * | (80 | / | 267) | = | -10.48689138 | ||
| 5 | 19905 | 2440 | - | 2528 | = | -88 | * | (54 | / | 267) | = | -17.79775281 | ||
| 6 | 19906 | 2469 | - | 2552 | = | -83 | * | (70 | / | 267) | = | -21.76029957 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Melbourne (Ella P.) Elementary | -54 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -57 | -59 | -60 | -50 | -54 | -280.0 | -56.0 |
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: -68.0
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 | 90% | 91% | 92% | 93% | 93% |
| 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.
Melbourne (Ella P.) Elementary math proficiency
Zero+ meets standard.
82% less $meal
82% less $meal
85% less $meal
86% less $meal
86% 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.