Sierra Vista K-8 (Data source)
Source data for Sierra Vista K-8
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 | 89158 | 2396 | - | 2436 | = | -40 | * | (48 | / | 283) | = | -6.78445228 | ||
4 | 89160 | 2451 | - | 2485 | = | -34 | * | (60 | / | 283) | = | -7.20848056 | ||
5 | 89161 | 2489 | - | 2528 | = | -39 | * | (54 | / | 283) | = | -7.44169608 | ||
6 | 89164 | 2510 | - | 2552 | = | -42 | * | (52 | / | 283) | = | -7.71731449 | ||
7 | 89165 | 2528 | - | 2567 | = | -39 | * | (69 | / | 283) | = | -9.50883391 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sierra Vista K-8 | -39 |
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 | 89361 | 2433 | - | 2436 | = | -3 | * | (46 | / | 394) | = | -0.35025381 | ||
4 | 89364 | 2434 | - | 2485 | = | -51 | * | (58 | / | 394) | = | -7.50761417 | ||
5 | 89365 | 2484 | - | 2528 | = | -44 | * | (57 | / | 394) | = | -6.3654822 | ||
6 | 89368 | 2533 | - | 2552 | = | -19 | * | (62 | / | 394) | = | -2.98984771 | ||
7 | 89369 | 2535 | - | 2567 | = | -32 | * | (93 | / | 394) | = | -7.55329949 | ||
8 | 89372 | 2527 | - | 2586 | = | -59 | * | (78 | / | 394) | = | -11.68020304 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sierra Vista K-8 | -36 |
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 | 89975 | 2431 | - | 2436 | = | -5 | * | (46 | / | 426) | = | -0.5399061 | ||
4 | 89976 | 2489 | - | 2485 | = | 4 | * | (63 | / | 426) | = | 0.59154929 | ||
5 | 89977 | 2466 | - | 2528 | = | -62 | * | (61 | / | 426) | = | -8.87793426 | ||
6 | 89978 | 2534 | - | 2552 | = | -18 | * | (61 | / | 426) | = | -2.57746478 | ||
7 | 89979 | 2540 | - | 2567 | = | -27 | * | (101 | / | 426) | = | -6.40140843 | ||
8 | 89980 | 2503 | - | 2586 | = | -83 | * | (94 | / | 426) | = | -18.31455391 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sierra Vista K-8 | -36 |
Last steps
Compute the average
2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|
-39 | -36 | -36 | -111.0 | -37.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -34.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -40.0
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:
2017 | 2018 | 2019 | |
---|---|---|---|
Percent | 42% | 43% | 41% |
Data source | 2017 data file | 2018 data file | 2019 data file |
Vacaville Unified school district County of Solano
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Sierra Vista K-8 math proficiency
Zero+ meets standard.
37% less $meal
33% less $meal
31% 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.
Elementary School (Public) schools in Vacaville Unified (9)
Alamo Elementary | Browns Valley Elementary | Cooper Elementary |
Edwin Markham Elementary | Eugene Padan Elementary | Hemlock Elementary |
Jean Callison Elementary | Orchard Elementary | Sierra Vista K-8 |