El Portal Elementary (Data source)
Source data for El Portal 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 | 1022535 | 2460 | - | 2436 | = | 24 | * | (62 | / | 265) | = | 5.61509434 | ||
| 4 | 1022538 | 2474 | - | 2485 | = | -11 | * | (66 | / | 265) | = | -2.73962263 | ||
| 5 | 1022539 | 2496 | - | 2528 | = | -32 | * | (69 | / | 265) | = | -8.33207546 | ||
| 6 | 1022542 | 2527 | - | 2552 | = | -25 | * | (68 | / | 265) | = | -6.41509433 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for El Portal Elementary | -12 | ||||||||||||
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 | 32099 | 2458 | - | 2436 | = | 22 | * | (76 | / | 273) | = | 6.12454212 | ||
| 4 | 32100 | 2522 | - | 2485 | = | 37 | * | (65 | / | 273) | = | 8.80952381 | ||
| 5 | 32102 | 2521 | - | 2528 | = | -7 | * | (64 | / | 273) | = | -1.64102564 | ||
| 6 | 32105 | 2546 | - | 2552 | = | -6 | * | (68 | / | 273) | = | -1.49450549 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for El Portal Elementary | 12 | ||||||||||||
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 | 32635 | 2470 | - | 2436 | = | 34 | * | (65 | / | 271) | = | 8.15498153 | ||
| 4 | 32637 | 2514 | - | 2485 | = | 29 | * | (79 | / | 271) | = | 8.45387454 | ||
| 5 | 32639 | 2530 | - | 2528 | = | 2 | * | (64 | / | 271) | = | 0.47232472 | ||
| 6 | 32640 | 2554 | - | 2552 | = | 2 | * | (63 | / | 271) | = | 0.46494465 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for El Portal Elementary | 18 | ||||||||||||
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 | 32653 | 2453 | - | 2436 | = | 17 | * | (59 | / | 273) | = | 3.67399267 | ||
| 4 | 32655 | 2538 | - | 2485 | = | 53 | * | (70 | / | 273) | = | 13.58974357 | ||
| 5 | 32657 | 2505 | - | 2528 | = | -23 | * | (77 | / | 273) | = | -6.48717949 | ||
| 6 | 32659 | 2570 | - | 2552 | = | 18 | * | (67 | / | 273) | = | 4.41758241 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for El Portal Elementary | 15 | ||||||||||||
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 | 32833 | 2457 | - | 2436 | = | 21 | * | (77 | / | 295) | = | 5.48135593 | ||
| 4 | 32834 | 2512 | - | 2485 | = | 27 | * | (63 | / | 295) | = | 5.76610169 | ||
| 5 | 32835 | 2549 | - | 2528 | = | 21 | * | (72 | / | 295) | = | 5.12542372 | ||
| 6 | 32836 | 2558 | - | 2552 | = | 6 | * | (83 | / | 295) | = | 1.68813559 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for El Portal Elementary | 18 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -12 | 12 | 18 | 15 | 18 | 51.0 | 10.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 46.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -25.8
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 | 50% | 51% | 45% | 46% | 43% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lowell Joint 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.
El Portal Elementary math proficiency
Zero+ meets standard.
40% less $meal
41% less $meal
36% less $meal
40% less $meal
36% 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 Lowell Joint (5)
| El Portal Elementary | Jordan Elementary | Macy Elementary |
| Meadow Green Elementary | Olita Elementary |