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 | 1518739 | 2433 | - | 2436 | = | -3 | * | (75 | / | 271) | = | -0.8302583 | ||
| 4 | 1518740 | 2499 | - | 2485 | = | 14 | * | (66 | / | 271) | = | 3.40959409 | ||
| 5 | 1518743 | 2509 | - | 2528 | = | -19 | * | (62 | / | 271) | = | -4.34686345 | ||
| 6 | 1518744 | 2549 | - | 2552 | = | -3 | * | (68 | / | 271) | = | -0.75276753 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Linda Vista Elementary | -3 | ||||||||||||
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 | 47591 | 2470 | - | 2436 | = | 34 | * | (82 | / | 285) | = | 9.78245613 | ||
| 4 | 47592 | 2476 | - | 2485 | = | -9 | * | (72 | / | 285) | = | -2.2736842 | ||
| 5 | 47594 | 2515 | - | 2528 | = | -13 | * | (61 | / | 285) | = | -2.78245613 | ||
| 6 | 47596 | 2564 | - | 2552 | = | 12 | * | (70 | / | 285) | = | 2.94736842 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Linda Vista Elementary | 8 | ||||||||||||
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 | 48884 | 2451 | - | 2436 | = | 15 | * | (63 | / | 256) | = | 3.69140625 | ||
| 4 | 48887 | 2507 | - | 2485 | = | 22 | * | (69 | / | 256) | = | 5.9296875 | ||
| 5 | 48889 | 2487 | - | 2528 | = | -41 | * | (61 | / | 256) | = | -9.76953125 | ||
| 6 | 48890 | 2573 | - | 2552 | = | 21 | * | (63 | / | 256) | = | 5.16796875 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Linda Vista Elementary | 5 | ||||||||||||
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 | 48906 | 2453 | - | 2436 | = | 17 | * | (59 | / | 244) | = | 4.11065573 | ||
| 4 | 48909 | 2484 | - | 2485 | = | -1 | * | (62 | / | 244) | = | -0.25409836 | ||
| 5 | 48910 | 2544 | - | 2528 | = | 16 | * | (64 | / | 244) | = | 4.1967213 | ||
| 6 | 48913 | 2540 | - | 2552 | = | -12 | * | (59 | / | 244) | = | -2.90163934 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Linda Vista Elementary | 5 | ||||||||||||
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 | 49106 | 2466 | - | 2436 | = | 30 | * | (52 | / | 239) | = | 6.52719663 | ||
| 4 | 49107 | 2483 | - | 2485 | = | -2 | * | (59 | / | 239) | = | -0.49372385 | ||
| 5 | 49108 | 2515 | - | 2528 | = | -13 | * | (63 | / | 239) | = | -3.42677824 | ||
| 6 | 49109 | 2585 | - | 2552 | = | 33 | * | (65 | / | 239) | = | 8.97489539 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Linda Vista Elementary | 12 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -3 | 8 | 5 | 5 | 12 | 27.0 | 5.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 20.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -9.6
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 | 18% | 18% | 18% | 24% | 26% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Orange 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.
14% less $meal
12% less $meal
14% less $meal
23% less $meal
24% 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.