Barrett Ranch Elementary (Data source)
Source data for Barrett Ranch 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 | 1595366 | 2422 | - | 2436 | = | -14 | * | (94 | / | 306) | = | -4.30065359 | ||
| 4 | 1595367 | 2458 | - | 2485 | = | -27 | * | (105 | / | 306) | = | -9.26470586 | ||
| 5 | 1595370 | 2486 | - | 2528 | = | -42 | * | (107 | / | 306) | = | -14.68627448 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Barrett Ranch Elementary | -28 | ||||||||||||
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 | 49918 | 2432 | - | 2436 | = | -4 | * | (76 | / | 263) | = | -1.15589354 | ||
| 4 | 49921 | 2456 | - | 2485 | = | -29 | * | (90 | / | 263) | = | -9.92395437 | ||
| 5 | 49922 | 2503 | - | 2528 | = | -25 | * | (97 | / | 263) | = | -9.2205323 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Barrett Ranch Elementary | -20 | ||||||||||||
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 | 51319 | 2435 | - | 2436 | = | -1 | * | (85 | / | 254) | = | -0.33464567 | ||
| 4 | 51320 | 2461 | - | 2485 | = | -24 | * | (74 | / | 254) | = | -6.99212597 | ||
| 5 | 51323 | 2473 | - | 2528 | = | -55 | * | (95 | / | 254) | = | -20.57086614 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Barrett Ranch Elementary | -28 | ||||||||||||
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 | 51344 | 2433 | - | 2436 | = | -3 | * | (114 | / | 279) | = | -1.22580645 | ||
| 4 | 51347 | 2486 | - | 2485 | = | 1 | * | (90 | / | 279) | = | 0.32258065 | ||
| 5 | 51348 | 2490 | - | 2528 | = | -38 | * | (75 | / | 279) | = | -10.21505375 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Barrett Ranch Elementary | -11 | ||||||||||||
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 | 51543 | 2430 | - | 2436 | = | -6 | * | (115 | / | 300) | = | -2.3 | ||
| 4 | 51544 | 2478 | - | 2485 | = | -7 | * | (100 | / | 300) | = | -2.33333333 | ||
| 5 | 51545 | 2503 | - | 2528 | = | -25 | * | (85 | / | 300) | = | -7.08333333 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Barrett Ranch Elementary | -12 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -28 | -20 | -28 | -11 | -12 | -99.0 | -19.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 4.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -43.8
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 | 66% | 67% | 67% | 68% | 69% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Dry Creek Joint Elementary school district | County of Placer
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.
Barrett Ranch Elementary math proficiency
Zero+ meets standard.
48% less $meal
51% less $meal
50% less $meal
60% less $meal
59% 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 Dry Creek Joint Elementary (7)
| Antelope Meadows Elementary | Barrett Ranch Elementary | Coyote Ridge Elementary |
| Creekview Ranch | Heritage Oak Elementary | Olive Grove Elementary |
| Quail Glen Elementary |