Shaffer Elementary (Data source)
Source data for Shaffer 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 | 1296575 | 2419 | - | 2436 | = | -17 | * | (68 | / | 266) | = | -4.34586465 | ||
| 4 | 1296576 | 2422 | - | 2485 | = | -63 | * | (67 | / | 266) | = | -15.86842104 | ||
| 5 | 1296578 | 2456 | - | 2528 | = | -72 | * | (68 | / | 266) | = | -18.40601498 | ||
| 6 | 1296581 | 2466 | - | 2552 | = | -86 | * | (63 | / | 266) | = | -20.36842103 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Shaffer Elementary | -59 | ||||||||||||
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 | 40657 | 2413 | - | 2436 | = | -23 | * | (81 | / | 283) | = | -6.58303886 | ||
| 4 | 40658 | 2440 | - | 2485 | = | -45 | * | (66 | / | 283) | = | -10.49469962 | ||
| 5 | 40661 | 2455 | - | 2528 | = | -73 | * | (66 | / | 283) | = | -17.02473493 | ||
| 6 | 40662 | 2494 | - | 2552 | = | -58 | * | (70 | / | 283) | = | -14.34628973 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Shaffer Elementary | -48 | ||||||||||||
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 | 41660 | 2414 | - | 2436 | = | -22 | * | (80 | / | 284) | = | -6.19718308 | ||
| 4 | 41661 | 2426 | - | 2485 | = | -59 | * | (78 | / | 284) | = | -16.20422533 | ||
| 5 | 41664 | 2455 | - | 2528 | = | -73 | * | (65 | / | 284) | = | -16.70774645 | ||
| 6 | 41665 | 2521 | - | 2552 | = | -31 | * | (61 | / | 284) | = | -6.65845069 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Shaffer Elementary | -46 | ||||||||||||
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 | 41692 | 2398 | - | 2436 | = | -38 | * | (87 | / | 312) | = | -10.59615381 | ||
| 4 | 41695 | 2439 | - | 2485 | = | -46 | * | (80 | / | 312) | = | -11.79487178 | ||
| 5 | 41696 | 2440 | - | 2528 | = | -88 | * | (80 | / | 312) | = | -22.56410253 | ||
| 6 | 41699 | 2520 | - | 2552 | = | -32 | * | (65 | / | 312) | = | -6.66666666 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Shaffer Elementary | -52 | ||||||||||||
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 | 41837 | 2418 | - | 2436 | = | -18 | * | (82 | / | 313) | = | -4.71565494 | ||
| 4 | 41838 | 2458 | - | 2485 | = | -27 | * | (85 | / | 313) | = | -7.33226837 | ||
| 5 | 41839 | 2480 | - | 2528 | = | -48 | * | (74 | / | 313) | = | -11.3482428 | ||
| 6 | 41840 | 2503 | - | 2552 | = | -49 | * | (72 | / | 313) | = | -11.27156545 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Shaffer Elementary | -35 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -59 | -48 | -46 | -52 | -35 | -240.0 | -48.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -24.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -72.0
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:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 91% | 87% | 86% | 88% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Atwater Elementary 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.
Shaffer Elementary math proficiency
Zero+ meets standard.
80% less $meal
77% less $meal
74% less $meal
79% less $meal
78% 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 Atwater Elementary (7)
| Aileen Colburn Elementary | Bellevue Elementary | Elmer Wood Elementary |
| Mitchell Elementary | Peggy Heller Elementary | Shaffer Elementary |
| Thomas Olaeta Elementary |