Villa Park Elementary (Data source)
Source data for Villa Park 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 | 1516834 | 2462 | - | 2436 | = | 26 | * | (89 | / | 382) | = | 6.05759162 | ||
| 4 | 1516837 | 2540 | - | 2485 | = | 55 | * | (88 | / | 382) | = | 12.67015706 | ||
| 5 | 1516838 | 2536 | - | 2528 | = | 8 | * | (104 | / | 382) | = | 2.17801046 | ||
| 6 | 1516841 | 2553 | - | 2552 | = | 1 | * | (101 | / | 382) | = | 0.26439791 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Villa Park Elementary | 21 | ||||||||||||
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 | 47537 | 2473 | - | 2436 | = | 37 | * | (85 | / | 368) | = | 8.54619562 | ||
| 4 | 47539 | 2539 | - | 2485 | = | 54 | * | (90 | / | 368) | = | 13.20652172 | ||
| 5 | 47540 | 2556 | - | 2528 | = | 28 | * | (87 | / | 368) | = | 6.6195652 | ||
| 6 | 47542 | 2579 | - | 2552 | = | 27 | * | (106 | / | 368) | = | 7.77717391 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Villa Park Elementary | 36 | ||||||||||||
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 | 48830 | 2483 | - | 2436 | = | 47 | * | (106 | / | 354) | = | 14.07344632 | ||
| 4 | 48833 | 2512 | - | 2485 | = | 27 | * | (74 | / | 354) | = | 5.6440678 | ||
| 5 | 48834 | 2557 | - | 2528 | = | 29 | * | (91 | / | 354) | = | 7.45480223 | ||
| 6 | 48837 | 2594 | - | 2552 | = | 42 | * | (83 | / | 354) | = | 9.84745759 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Villa Park Elementary | 37 | ||||||||||||
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 | 48853 | 2481 | - | 2436 | = | 45 | * | (81 | / | 361) | = | 10.0969529 | ||
| 4 | 48854 | 2524 | - | 2485 | = | 39 | * | (103 | / | 361) | = | 11.1274238 | ||
| 5 | 48857 | 2535 | - | 2528 | = | 7 | * | (81 | / | 361) | = | 1.57063712 | ||
| 6 | 48858 | 2580 | - | 2552 | = | 28 | * | (96 | / | 361) | = | 7.44598336 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Villa Park Elementary | 30 | ||||||||||||
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 | 49052 | 2467 | - | 2436 | = | 31 | * | (86 | / | 340) | = | 7.84117646 | ||
| 4 | 49053 | 2534 | - | 2485 | = | 49 | * | (79 | / | 340) | = | 11.38529411 | ||
| 5 | 49054 | 2562 | - | 2528 | = | 34 | * | (98 | / | 340) | = | 9.8 | ||
| 6 | 49055 | 2575 | - | 2552 | = | 23 | * | (77 | / | 340) | = | 5.20882352 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Villa Park Elementary | 34 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 21 | 36 | 37 | 30 | 34 | 158.0 | 31.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 49.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 13.6
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 | 12% | 13% | 13% | 18% | 19% |
| 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.
Villa Park Elementary math proficiency
Zero+ meets standard.
10% less $meal
11% less $meal
10% less $meal
17% less $meal
17% 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.