Central Elementary (Data source)
Source data for Central 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 | 2198469 | 2417 | - | 2436 | = | -19 | * | (96 | / | 385) | = | -4.73766233 | ||
| 4 | 2198470 | 2417 | - | 2485 | = | -68 | * | (90 | / | 385) | = | -15.89610384 | ||
| 5 | 2198473 | 2477 | - | 2528 | = | -51 | * | (93 | / | 385) | = | -12.31948049 | ||
| 6 | 2198474 | 2498 | - | 2552 | = | -54 | * | (106 | / | 385) | = | -14.86753245 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Central Elementary | -48 | ||||||||||||
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 | 67526 | 2422 | - | 2436 | = | -14 | * | (91 | / | 374) | = | -3.40641711 | ||
| 4 | 67527 | 2464 | - | 2485 | = | -21 | * | (93 | / | 374) | = | -5.22192512 | ||
| 5 | 67530 | 2455 | - | 2528 | = | -73 | * | (91 | / | 374) | = | -17.76203208 | ||
| 6 | 67532 | 2537 | - | 2552 | = | -15 | * | (99 | / | 374) | = | -3.97058823 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Central Elementary | -30 | ||||||||||||
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 | 69313 | 2405 | - | 2436 | = | -31 | * | (86 | / | 348) | = | -7.66091952 | ||
| 4 | 69314 | 2453 | - | 2485 | = | -32 | * | (89 | / | 348) | = | -8.18390803 | ||
| 5 | 69317 | 2491 | - | 2528 | = | -37 | * | (87 | / | 348) | = | -9.25 | ||
| 6 | 69318 | 2520 | - | 2552 | = | -32 | * | (86 | / | 348) | = | -7.90804595 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Central Elementary | -33 | ||||||||||||
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 | 69475 | 2398 | - | 2436 | = | -38 | * | (77 | / | 331) | = | -8.83987912 | ||
| 4 | 69478 | 2451 | - | 2485 | = | -34 | * | (78 | / | 331) | = | -8.01208456 | ||
| 5 | 69479 | 2474 | - | 2528 | = | -54 | * | (84 | / | 331) | = | -13.70392749 | ||
| 6 | 69482 | 2533 | - | 2552 | = | -19 | * | (92 | / | 331) | = | -5.28096676 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Central Elementary | -36 | ||||||||||||
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 | 69998 | 2398 | - | 2436 | = | -38 | * | (77 | / | 319) | = | -9.17241378 | ||
| 4 | 69999 | 2436 | - | 2485 | = | -49 | * | (76 | / | 319) | = | -11.67398119 | ||
| 5 | 70000 | 2460 | - | 2528 | = | -68 | * | (77 | / | 319) | = | -16.41379308 | ||
| 6 | 70001 | 2511 | - | 2552 | = | -41 | * | (89 | / | 319) | = | -11.43887147 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Central Elementary | -49 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -48 | -30 | -33 | -36 | -49 | -196.0 | -39.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -63.2
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 | 77% | 78% | 83% | 84% | 80% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
National Elementary school district | County of San Diego
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.
Central Elementary math proficiency
Zero+ meets standard.
68% less $meal
70% less $meal
71% less $meal
76% less $meal
73% 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 National Elementary (10)
| Central Elementary | El Toyon Elementary | Ira Harbison |
| John A. Otis Elementary | Kimball | Las Palmas |
| Lincoln Acres | Olivewood | Palmer Way |
| Rancho de la Nacion |