Rancho de la Nacion (Data source)
Source data for Rancho de la Nacion
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 | 2201536 | 2411 | - | 2436 | = | -25 | * | (64 | / | 267) | = | -5.99250935 | ||
| 4 | 2201538 | 2427 | - | 2485 | = | -58 | * | (58 | / | 267) | = | -12.59925091 | ||
| 5 | 2201541 | 2465 | - | 2528 | = | -63 | * | (75 | / | 267) | = | -17.69662919 | ||
| 6 | 2201542 | 2499 | - | 2552 | = | -53 | * | (70 | / | 267) | = | -13.89513105 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rancho de la Nacion | -50 | ||||||||||||
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 | 67616 | 2415 | - | 2436 | = | -21 | * | (62 | / | 251) | = | -5.18725099 | ||
| 4 | 67618 | 2451 | - | 2485 | = | -34 | * | (57 | / | 251) | = | -7.72111552 | ||
| 5 | 67619 | 2456 | - | 2528 | = | -72 | * | (58 | / | 251) | = | -16.63745018 | ||
| 6 | 67622 | 2487 | - | 2552 | = | -65 | * | (74 | / | 251) | = | -19.16334661 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rancho de la Nacion | -49 | ||||||||||||
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 | 69403 | 2436 | - | 2436 | = | 0 | * | (64 | / | 238) | = | 0.0 | ||
| 4 | 69404 | 2427 | - | 2485 | = | -58 | * | (64 | / | 238) | = | -15.59663865 | ||
| 5 | 69406 | 2471 | - | 2528 | = | -57 | * | (56 | / | 238) | = | -13.41176467 | ||
| 6 | 69408 | 2494 | - | 2552 | = | -58 | * | (54 | / | 238) | = | -13.15966385 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rancho de la Nacion | -42 | ||||||||||||
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 | 69565 | 2432 | - | 2436 | = | -4 | * | (71 | / | 250) | = | -1.136 | ||
| 4 | 69567 | 2464 | - | 2485 | = | -21 | * | (65 | / | 250) | = | -5.46 | ||
| 5 | 69569 | 2439 | - | 2528 | = | -89 | * | (54 | / | 250) | = | -19.224 | ||
| 6 | 69571 | 2462 | - | 2552 | = | -90 | * | (60 | / | 250) | = | -21.6 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rancho de la Nacion | -47 | ||||||||||||
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 | 70088 | 2430 | - | 2436 | = | -6 | * | (76 | / | 266) | = | -1.71428571 | ||
| 4 | 70089 | 2477 | - | 2485 | = | -8 | * | (65 | / | 266) | = | -1.95488722 | ||
| 5 | 70090 | 2474 | - | 2528 | = | -54 | * | (64 | / | 266) | = | -12.99248116 | ||
| 6 | 70091 | 2478 | - | 2552 | = | -74 | * | (61 | / | 266) | = | -16.96992479 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rancho de la Nacion | -34 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -50 | -49 | -42 | -47 | -34 | -222.0 | -44.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -26.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -62.4
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 | 83% | 83% | 86% | 86% | 82% |
| 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.
Rancho de la Nacion math proficiency
Zero+ meets standard.
74% less $meal
74% less $meal
76% less $meal
78% less $meal
76% 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 |