River Middle (Data source)
Source data for River 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 | 1389458 | 2518 | - | 2552 | = | -34 | * | (117 | / | 355) | = | -11.20563378 | ||
| 7 | 1389459 | 2559 | - | 2567 | = | -8 | * | (120 | / | 355) | = | -2.70422535 | ||
| 8 | 1389462 | 2560 | - | 2586 | = | -26 | * | (118 | / | 355) | = | -8.64225352 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for River Middle | -23 | ||||||||||||
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 | 43767 | 2527 | - | 2552 | = | -25 | * | (116 | / | 347) | = | -8.3573487 | ||
| 7 | 43769 | 2546 | - | 2567 | = | -21 | * | (117 | / | 347) | = | -7.08069163 | ||
| 8 | 43770 | 2575 | - | 2586 | = | -11 | * | (114 | / | 347) | = | -3.61383285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for River Middle | -19 | ||||||||||||
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 | 44842 | 2515 | - | 2552 | = | -37 | * | (130 | / | 376) | = | -12.79255316 | ||
| 7 | 44844 | 2550 | - | 2567 | = | -17 | * | (128 | / | 376) | = | -5.78723403 | ||
| 8 | 44846 | 2553 | - | 2586 | = | -33 | * | (118 | / | 376) | = | -10.35638297 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for River Middle | -29 | ||||||||||||
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 | 44852 | 2517 | - | 2552 | = | -35 | * | (130 | / | 384) | = | -11.84895831 | ||
| 7 | 44855 | 2548 | - | 2567 | = | -19 | * | (129 | / | 384) | = | -6.3828125 | ||
| 8 | 44856 | 2562 | - | 2586 | = | -24 | * | (125 | / | 384) | = | -7.81249999 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for River Middle | -26 | ||||||||||||
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 | 44979 | 2525 | - | 2552 | = | -27 | * | (124 | / | 371) | = | -9.02425874 | ||
| 7 | 44980 | 2551 | - | 2567 | = | -16 | * | (126 | / | 371) | = | -5.43396226 | ||
| 8 | 44981 | 2553 | - | 2586 | = | -33 | * | (121 | / | 371) | = | -10.76280322 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for River Middle | -25 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -23 | -19 | -29 | -26 | -25 | -122.0 | -24.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -33.4
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 | 24% | 29% | 23% | 27% | 22% |
| 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.
River Middle math proficiency
Zero+ meets standard.
15% less $meal
20% less $meal
17% less $meal
24% less $meal
19% 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 |