Browns Valley Elementary (Data source)
Source data for Browns Valley 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 | 1384667 | 2423 | - | 2436 | = | -13 | * | (88 | / | 264) | = | -4.33333333 | ||
| 4 | 1384668 | 2474 | - | 2485 | = | -11 | * | (84 | / | 264) | = | -3.5 | ||
| 5 | 1384671 | 2503 | - | 2528 | = | -25 | * | (92 | / | 264) | = | -8.7121212 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Browns Valley Elementary | -17 | ||||||||||||
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 | 43619 | 2459 | - | 2436 | = | 23 | * | (88 | / | 265) | = | 7.63773583 | ||
| 4 | 43620 | 2467 | - | 2485 | = | -18 | * | (86 | / | 265) | = | -5.84150942 | ||
| 5 | 43623 | 2516 | - | 2528 | = | -12 | * | (91 | / | 265) | = | -4.12075471 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Browns Valley Elementary | -2 | ||||||||||||
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 | 44694 | 2470 | - | 2436 | = | 34 | * | (86 | / | 264) | = | 11.07575755 | ||
| 4 | 44695 | 2469 | - | 2485 | = | -16 | * | (90 | / | 264) | = | -5.45454544 | ||
| 5 | 44698 | 2509 | - | 2528 | = | -19 | * | (88 | / | 264) | = | -6.33333333 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Browns Valley Elementary | -1 | ||||||||||||
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 | 44707 | 2479 | - | 2436 | = | 43 | * | (91 | / | 267) | = | 14.65543071 | ||
| 4 | 44708 | 2485 | - | 2485 | = | 0 | * | (87 | / | 267) | = | 0.0 | ||
| 5 | 44711 | 2519 | - | 2528 | = | -9 | * | (89 | / | 267) | = | -3.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Browns Valley Elementary | 12 | ||||||||||||
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 | 44849 | 2476 | - | 2436 | = | 40 | * | (76 | / | 262) | = | 11.6030534 | ||
| 4 | 44850 | 2496 | - | 2485 | = | 11 | * | (95 | / | 262) | = | 3.98854961 | ||
| 5 | 44851 | 2508 | - | 2528 | = | -20 | * | (91 | / | 262) | = | -6.94656488 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Browns Valley Elementary | 9 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -17 | -2 | -1 | 12 | 9 | 1.0 | 0.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 33.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -32.8
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 | 34% | 34% | 33% | 34% | 31% |
| 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.
Browns Valley Elementary math proficiency
Zero+ meets standard.
28% less $meal
28% less $meal
28% less $meal
30% less $meal
28% 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.