Arboga Elementary (Data source)
Source data for Arboga 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 | 3194833 | 2424 | - | 2436 | = | -12 | * | (75 | / | 283) | = | -3.180212 | ||
| 4 | 3194834 | 2463 | - | 2485 | = | -22 | * | (84 | / | 283) | = | -6.53003531 | ||
| 5 | 3194837 | 2476 | - | 2528 | = | -52 | * | (68 | / | 283) | = | -12.49469962 | ||
| 6 | 3194838 | 2515 | - | 2552 | = | -37 | * | (56 | / | 283) | = | -7.32155475 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Arboga Elementary | -30 | ||||||||||||
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 | 98481 | 2422 | - | 2436 | = | -14 | * | (68 | / | 289) | = | -3.29411764 | ||
| 4 | 98483 | 2464 | - | 2485 | = | -21 | * | (75 | / | 289) | = | -5.44982697 | ||
| 5 | 98484 | 2469 | - | 2528 | = | -59 | * | (81 | / | 289) | = | -16.53633214 | ||
| 6 | 98487 | 2488 | - | 2552 | = | -64 | * | (65 | / | 289) | = | -14.39446362 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Arboga Elementary | -40 | ||||||||||||
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 | 101348 | 2417 | - | 2436 | = | -19 | * | (72 | / | 276) | = | -4.95652174 | ||
| 4 | 101349 | 2461 | - | 2485 | = | -24 | * | (67 | / | 276) | = | -5.82608695 | ||
| 5 | 101352 | 2464 | - | 2528 | = | -64 | * | (67 | / | 276) | = | -15.53623187 | ||
| 6 | 101353 | 2521 | - | 2552 | = | -31 | * | (70 | / | 276) | = | -7.86231883 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Arboga Elementary | -34 | ||||||||||||
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 | 101503 | 2437 | - | 2436 | = | 1 | * | (75 | / | 284) | = | 0.26408451 | ||
| 4 | 101504 | 2445 | - | 2485 | = | -40 | * | (75 | / | 284) | = | -10.56338028 | ||
| 5 | 101507 | 2467 | - | 2528 | = | -61 | * | (74 | / | 284) | = | -15.89436618 | ||
| 6 | 101508 | 2496 | - | 2552 | = | -56 | * | (60 | / | 284) | = | -11.83098588 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Arboga Elementary | -38 | ||||||||||||
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 | 102154 | 2431 | - | 2436 | = | -5 | * | (65 | / | 269) | = | -1.20817844 | ||
| 4 | 102155 | 2468 | - | 2485 | = | -17 | * | (77 | / | 269) | = | -4.866171 | ||
| 5 | 102156 | 2478 | - | 2528 | = | -50 | * | (64 | / | 269) | = | -11.89591075 | ||
| 6 | 102157 | 2516 | - | 2552 | = | -36 | * | (63 | / | 269) | = | -8.43122675 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Arboga Elementary | -26 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -30 | -40 | -34 | -38 | -26 | -168.0 | -33.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -18.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -48.6
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 | 68% | 69% | 69% | 66% | 65% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Marysville Joint Unified school district | County of Yuba
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.
Arboga Elementary math proficiency
Zero+ meets standard.
57% less $meal
58% less $meal
55% less $meal
57% 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.