Cerro Villa Middle (Data source)
Source data for Cerro Villa Middle
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 |
||
| 7 | 1517416 | 2521 | - | 2567 | = | -46 | * | (484 | / | 1017) | = | -21.8918387 | ||
| 8 | 1517419 | 2543 | - | 2586 | = | -43 | * | (533 | / | 1017) | = | -22.53588987 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Cerro Villa Middle | -44 | ||||||||||||
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 |
||
| 7 | 47554 | 2528 | - | 2567 | = | -39 | * | (500 | / | 990) | = | -19.6969697 | ||
| 8 | 47557 | 2541 | - | 2586 | = | -45 | * | (490 | / | 990) | = | -22.27272723 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Cerro Villa Middle | -42 | ||||||||||||
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 |
||
| 7 | 48849 | 2541 | - | 2567 | = | -26 | * | (534 | / | 1040) | = | -13.34999999 | ||
| 8 | 48850 | 2551 | - | 2586 | = | -35 | * | (506 | / | 1040) | = | -17.02884614 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Cerro Villa Middle | -30 | ||||||||||||
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 |
||
| 7 | 48870 | 2542 | - | 2567 | = | -25 | * | (490 | / | 1009) | = | -12.14073338 | ||
| 8 | 48873 | 2552 | - | 2586 | = | -34 | * | (519 | / | 1009) | = | -17.48860258 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Cerro Villa Middle | -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 |
||
| 7 | 49068 | 2547 | - | 2567 | = | -20 | * | (470 | / | 954) | = | -9.85324946 | ||
| 8 | 49069 | 2556 | - | 2586 | = | -30 | * | (484 | / | 954) | = | -15.22012578 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Cerro Villa Middle | -25 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -44 | -42 | -30 | -30 | -25 | -171.0 | -34.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -10.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -58.2
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 | 37% | 37% | 38% | 46% | 43% |
| 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.
Cerro Villa Middle math proficiency
Zero+ meets standard.
31% less $meal
32% less $meal
31% less $meal
43% less $meal
41% 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.
Intermediate/Middle Schools (Public) schools in Orange Unified (3)
| Cerro Villa Middle | Portola Middle | Yorba Middle |