South Ranchito Dual Language Academy (Data source)
Source data for South Ranchito Dual Language Academy
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 | 697827 | 2394 | - | 2436 | = | -42 | * | (88 | / | 275) | = | -13.44 | ||
| 4 | 697830 | 2428 | - | 2485 | = | -57 | * | (87 | / | 275) | = | -18.03272725 | ||
| 5 | 697831 | 2452 | - | 2528 | = | -76 | * | (100 | / | 275) | = | -27.63636359 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for South Ranchito Dual Language Academy | -59 | ||||||||||||
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 | 22061 | 2400 | - | 2436 | = | -36 | * | (84 | / | 258) | = | -11.72093022 | ||
| 4 | 22062 | 2425 | - | 2485 | = | -60 | * | (86 | / | 258) | = | -19.99999998 | ||
| 5 | 22065 | 2446 | - | 2528 | = | -82 | * | (88 | / | 258) | = | -27.96899222 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for South Ranchito Dual Language Academy | -60 | ||||||||||||
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 | 22482 | 2400 | - | 2436 | = | -36 | * | (78 | / | 241) | = | -11.65145227 | ||
| 4 | 22484 | 2412 | - | 2485 | = | -73 | * | (79 | / | 241) | = | -23.92946052 | ||
| 5 | 22486 | 2426 | - | 2528 | = | -102 | * | (84 | / | 241) | = | -35.55186713 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for South Ranchito Dual Language Academy | -71 | ||||||||||||
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 | 22470 | 2408 | - | 2436 | = | -28 | * | (68 | / | 219) | = | -8.69406392 | ||
| 4 | 22472 | 2432 | - | 2485 | = | -53 | * | (77 | / | 219) | = | -18.63470317 | ||
| 5 | 22474 | 2465 | - | 2528 | = | -63 | * | (74 | / | 219) | = | -21.28767121 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for South Ranchito Dual Language Academy | -49 | ||||||||||||
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 | 22654 | 2390 | - | 2436 | = | -46 | * | (80 | / | 215) | = | -17.11627906 | ||
| 4 | 22655 | 2434 | - | 2485 | = | -51 | * | (63 | / | 215) | = | -14.94418601 | ||
| 5 | 22656 | 2488 | - | 2528 | = | -40 | * | (72 | / | 215) | = | -13.3953488 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for South Ranchito Dual Language Academy | -45 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -59 | -60 | -71 | -49 | -45 | -284.0 | -56.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -26.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -86.8
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 | 90% | 84% | 75% | 77% | 80% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
El Rancho 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.
South Ranchito Dual Language Academy math proficiency
Zero+ meets standard.
78% less $meal
75% less $meal
68% less $meal
71% 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.