Volta Elementary (Data source)
Source data for Volta 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 | 1306806 | 2438 | - | 2436 | = | 2 | * | (52 | / | 228) | = | 0.45614035 | ||
| 4 | 1306809 | 2464 | - | 2485 | = | -21 | * | (59 | / | 228) | = | -5.43421051 | ||
| 5 | 1306810 | 2490 | - | 2528 | = | -38 | * | (57 | / | 228) | = | -9.5 | ||
| 6 | 1306813 | 2502 | - | 2552 | = | -50 | * | (60 | / | 228) | = | -13.1578947 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Volta 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 | 40992 | 2451 | - | 2436 | = | 15 | * | (62 | / | 244) | = | 3.8114754 | ||
| 4 | 40994 | 2465 | - | 2485 | = | -20 | * | (66 | / | 244) | = | -5.40983606 | ||
| 5 | 40997 | 2503 | - | 2528 | = | -25 | * | (56 | / | 244) | = | -5.7377049 | ||
| 6 | 40998 | 2510 | - | 2552 | = | -42 | * | (60 | / | 244) | = | -10.32786884 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Volta Elementary | -18 | ||||||||||||
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 | 42002 | 2422 | - | 2436 | = | -14 | * | (56 | / | 243) | = | -3.22633744 | ||
| 4 | 42003 | 2497 | - | 2485 | = | 12 | * | (62 | / | 243) | = | 3.06172838 | ||
| 5 | 42005 | 2505 | - | 2528 | = | -23 | * | (64 | / | 243) | = | -6.05761316 | ||
| 6 | 42007 | 2514 | - | 2552 | = | -38 | * | (61 | / | 243) | = | -9.53909463 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Volta Elementary | -16 | ||||||||||||
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 | 42023 | 2410 | - | 2436 | = | -26 | * | (61 | / | 247) | = | -6.42105261 | ||
| 4 | 42024 | 2474 | - | 2485 | = | -11 | * | (57 | / | 247) | = | -2.53846153 | ||
| 5 | 42027 | 2493 | - | 2528 | = | -35 | * | (66 | / | 247) | = | -9.3522267 | ||
| 6 | 42029 | 2512 | - | 2552 | = | -40 | * | (63 | / | 247) | = | -10.20242912 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Volta Elementary | -29 | ||||||||||||
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 | 42165 | 2411 | - | 2436 | = | -25 | * | (69 | / | 253) | = | -6.8181818 | ||
| 4 | 42166 | 2465 | - | 2485 | = | -20 | * | (59 | / | 253) | = | -4.66403162 | ||
| 5 | 42167 | 2506 | - | 2528 | = | -22 | * | (59 | / | 253) | = | -5.13043478 | ||
| 6 | 42168 | 2529 | - | 2552 | = | -23 | * | (66 | / | 253) | = | -6.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Volta Elementary | -23 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -28 | -18 | -16 | -29 | -23 | -114.0 | -22.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -7.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -37.8
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 | 57% | 67% | 64% | 51% | 64% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Banos Unified school district County of Merced
Just a coincidence? That's absurd.
It's a system that causes this pattern to repeat.
THIS chart shows what the
follow-the-schedule method wants.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Volta Elementary math proficiency
Zero+ meets standard.
50% less $meal
59% less $meal
53% less $meal
47% less $meal
54% 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.