Silverado Middle (Data source)
Source data for Silverado 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 | 1389139 | 2486 | - | 2552 | = | -66 | * | (222 | / | 779) | = | -18.8087291 | ||
| 7 | 1389142 | 2490 | - | 2567 | = | -77 | * | (283 | / | 779) | = | -27.97304233 | ||
| 8 | 1389143 | 2535 | - | 2586 | = | -51 | * | (274 | / | 779) | = | -17.93838254 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Silverado Middle | -65 | ||||||||||||
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 | 43759 | 2470 | - | 2552 | = | -82 | * | (238 | / | 801) | = | -24.3645443 | ||
| 7 | 43761 | 2491 | - | 2567 | = | -76 | * | (277 | / | 801) | = | -26.28214725 | ||
| 8 | 43763 | 2514 | - | 2586 | = | -72 | * | (286 | / | 801) | = | -25.7078651 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Silverado Middle | -76 | ||||||||||||
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 | 44834 | 2479 | - | 2552 | = | -73 | * | (219 | / | 786) | = | -20.33969464 | ||
| 7 | 44836 | 2467 | - | 2567 | = | -100 | * | (285 | / | 786) | = | -36.2595419 | ||
| 8 | 44838 | 2527 | - | 2586 | = | -59 | * | (282 | / | 786) | = | -21.16793888 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Silverado Middle | -78 | ||||||||||||
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 | 44845 | 2477 | - | 2552 | = | -75 | * | (314 | / | 850) | = | -27.7058823 | ||
| 7 | 44846 | 2468 | - | 2567 | = | -99 | * | (264 | / | 850) | = | -30.74823527 | ||
| 8 | 44849 | 2503 | - | 2586 | = | -83 | * | (272 | / | 850) | = | -26.56 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Silverado Middle | -85 | ||||||||||||
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 | 44971 | 2504 | - | 2552 | = | -48 | * | (247 | / | 817) | = | -14.51162789 | ||
| 7 | 44972 | 2484 | - | 2567 | = | -83 | * | (307 | / | 817) | = | -31.18849442 | ||
| 8 | 44973 | 2507 | - | 2586 | = | -79 | * | (263 | / | 817) | = | -25.4308445 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Silverado Middle | -71 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -76 | -78 | -85 | -71 | -375.0 | -75.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -54.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -96.0
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 | 53% | 55% | 60% | 64% | 63% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Napa Valley Unified school district | County of Napa
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.
Silverado Middle math proficiency
Zero+ meets standard.
42% less $meal
44% less $meal
48% less $meal
56% 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 Napa Valley Unified (5)
| American Canyon Middle | Harvest Middle | Redwood Middle |
| River Middle | Silverado Middle |