Linda Vista Elementary (Data source)
Source data for Linda Vista 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 | 1529852 | 2487 | - | 2436 | = | 51 | * | (86 | / | 251) | = | 17.47410358 | ||
| 4 | 1529855 | 2528 | - | 2485 | = | 43 | * | (78 | / | 251) | = | 13.3625498 | ||
| 5 | 1529856 | 2556 | - | 2528 | = | 28 | * | (87 | / | 251) | = | 9.70517926 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Linda Vista Elementary | 41 | ||||||||||||
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 | 47900 | 2483 | - | 2436 | = | 47 | * | (83 | / | 241) | = | 16.18672198 | ||
| 4 | 47903 | 2536 | - | 2485 | = | 51 | * | (84 | / | 241) | = | 17.77593357 | ||
| 5 | 47905 | 2587 | - | 2528 | = | 59 | * | (74 | / | 241) | = | 18.11618252 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Linda Vista Elementary | 52 | ||||||||||||
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 | 49209 | 2496 | - | 2436 | = | 60 | * | (82 | / | 246) | = | 19.99999998 | ||
| 4 | 49210 | 2517 | - | 2485 | = | 32 | * | (81 | / | 246) | = | 10.53658534 | ||
| 5 | 49212 | 2586 | - | 2528 | = | 58 | * | (83 | / | 246) | = | 19.56910563 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Linda Vista Elementary | 50 | ||||||||||||
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 | 49222 | 2481 | - | 2436 | = | 45 | * | (66 | / | 237) | = | 12.53164554 | ||
| 4 | 49224 | 2545 | - | 2485 | = | 60 | * | (86 | / | 237) | = | 21.77215188 | ||
| 5 | 49226 | 2576 | - | 2528 | = | 48 | * | (85 | / | 237) | = | 17.21518987 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Linda Vista Elementary | 52 | ||||||||||||
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 | 49421 | 2492 | - | 2436 | = | 56 | * | (79 | / | 233) | = | 18.98712441 | ||
| 4 | 49422 | 2531 | - | 2485 | = | 46 | * | (63 | / | 233) | = | 12.43776824 | ||
| 5 | 49423 | 2592 | - | 2528 | = | 64 | * | (91 | / | 233) | = | 24.9957081 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Linda Vista Elementary | 56 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 41 | 52 | 50 | 52 | 56 | 251.0 | 50.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 65.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 35.2
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 | 11% | 10% | 13% | 15% | 13% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Placentia-Yorba Linda 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.
Linda Vista Elementary math proficiency
Zero+ meets standard.
8% less $meal
8% less $meal
10% less $meal
13% less $meal
13% 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.