Sierra Vista Middle (Data source)
Source data for Sierra Vista 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 |
||
| 6 | 668370 | 2487 | - | 2552 | = | -65 | * | (243 | / | 854) | = | -18.49531613 | ||
| 7 | 668373 | 2515 | - | 2567 | = | -52 | * | (307 | / | 854) | = | -18.6932084 | ||
| 8 | 668374 | 2523 | - | 2586 | = | -63 | * | (304 | / | 854) | = | -22.42622945 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sierra Vista Middle | -60 | ||||||||||||
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 |
||
| 6 | 21198 | 2507 | - | 2552 | = | -45 | * | (269 | / | 808) | = | -14.98143564 | ||
| 7 | 21199 | 2519 | - | 2567 | = | -48 | * | (245 | / | 808) | = | -14.55445541 | ||
| 8 | 21202 | 2544 | - | 2586 | = | -42 | * | (294 | / | 808) | = | -15.28217821 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sierra Vista Middle | -45 | ||||||||||||
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 |
||
| 6 | 21566 | 2527 | - | 2552 | = | -25 | * | (279 | / | 808) | = | -8.63242573 | ||
| 7 | 21567 | 2536 | - | 2567 | = | -31 | * | (285 | / | 808) | = | -10.93440593 | ||
| 8 | 21570 | 2551 | - | 2586 | = | -35 | * | (244 | / | 808) | = | -10.56930693 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sierra Vista 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 |
||
| 6 | 21544 | 2512 | - | 2552 | = | -40 | * | (300 | / | 859) | = | -13.96973224 | ||
| 7 | 21547 | 2524 | - | 2567 | = | -43 | * | (287 | / | 859) | = | -14.36670545 | ||
| 8 | 21548 | 2552 | - | 2586 | = | -34 | * | (272 | / | 859) | = | -10.76600698 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sierra Vista Middle | -39 | ||||||||||||
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 |
||
| 6 | 21718 | 2499 | - | 2552 | = | -53 | * | (259 | / | 850) | = | -16.14941175 | ||
| 7 | 21719 | 2528 | - | 2567 | = | -39 | * | (297 | / | 850) | = | -13.6270588 | ||
| 8 | 21720 | 2540 | - | 2586 | = | -46 | * | (294 | / | 850) | = | -15.91058819 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sierra Vista Middle | -46 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -60 | -45 | -30 | -39 | -46 | -220.0 | -44.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -14.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -74.0
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 | 61% | 63% | 65% | 61% | 65% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Covina-Valley Unified school district | County of Los Angeles
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.
Sierra Vista Middle math proficiency
Zero+ meets standard.
46% less $meal
49% less $meal
50% less $meal
52% less $meal
53% 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 Covina-Valley Unified (3)
| Las Palmas Middle | Sierra Vista Middle | Traweek Middle |