Cordillera Elementary (Data source)
Source data for Cordillera 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 | 1557318 | 2429 | - | 2436 | = | -7 | * | (86 | / | 343) | = | -1.75510203 | ||
| 4 | 1557321 | 2478 | - | 2485 | = | -7 | * | (90 | / | 343) | = | -1.83673469 | ||
| 5 | 1557322 | 2499 | - | 2528 | = | -29 | * | (88 | / | 343) | = | -7.44023321 | ||
| 6 | 1557325 | 2535 | - | 2552 | = | -17 | * | (79 | / | 343) | = | -3.91545188 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Cordillera Elementary | -15 | ||||||||||||
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 | 48778 | 2443 | - | 2436 | = | 7 | * | (91 | / | 348) | = | 1.83045976 | ||
| 4 | 48781 | 2477 | - | 2485 | = | -8 | * | (75 | / | 348) | = | -1.72413793 | ||
| 5 | 48783 | 2506 | - | 2528 | = | -22 | * | (95 | / | 348) | = | -6.00574711 | ||
| 6 | 48785 | 2553 | - | 2552 | = | 1 | * | (87 | / | 348) | = | 0.25 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Cordillera Elementary | -6 | ||||||||||||
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 | 50114 | 2423 | - | 2436 | = | -13 | * | (75 | / | 328) | = | -2.97256097 | ||
| 4 | 50117 | 2488 | - | 2485 | = | 3 | * | (90 | / | 328) | = | 0.82317073 | ||
| 5 | 50118 | 2491 | - | 2528 | = | -37 | * | (75 | / | 328) | = | -8.46036583 | ||
| 6 | 50121 | 2560 | - | 2552 | = | 8 | * | (88 | / | 328) | = | 2.14634146 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Cordillera Elementary | -8 | ||||||||||||
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 | 50142 | 2430 | - | 2436 | = | -6 | * | (79 | / | 311) | = | -1.52411575 | ||
| 4 | 50144 | 2468 | - | 2485 | = | -17 | * | (72 | / | 311) | = | -3.93569132 | ||
| 5 | 50146 | 2525 | - | 2528 | = | -3 | * | (89 | / | 311) | = | -0.8585209 | ||
| 6 | 50148 | 2541 | - | 2552 | = | -11 | * | (71 | / | 311) | = | -2.51125401 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Cordillera Elementary | -9 | ||||||||||||
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 | 50336 | 2410 | - | 2436 | = | -26 | * | (66 | / | 285) | = | -6.02105262 | ||
| 4 | 50337 | 2452 | - | 2485 | = | -33 | * | (70 | / | 285) | = | -8.10526316 | ||
| 5 | 50338 | 2515 | - | 2528 | = | -13 | * | (67 | / | 285) | = | -3.05614035 | ||
| 6 | 50339 | 2552 | - | 2552 | = | 0 | * | (82 | / | 285) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Cordillera Elementary | -17 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -15 | -6 | -8 | -9 | -17 | -55.0 | -11.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 1.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -23.0
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 | 31% | 31% | 36% | 41% | 39% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Saddleback Valley Unified school district | County of Orange
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.
Cordillera Elementary math proficiency
Zero+ meets standard.
23% less $meal
26% less $meal
28% less $meal
38% less $meal
34% 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.