Webber Elementary (Data source)
Source data for Webber 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 | 1551845 | 2391 | - | 2436 | = | -45 | * | (55 | / | 200) | = | -12.375 | ||
| 4 | 1551848 | 2436 | - | 2485 | = | -49 | * | (55 | / | 200) | = | -13.475 | ||
| 5 | 1551849 | 2506 | - | 2528 | = | -22 | * | (47 | / | 200) | = | -5.17 | ||
| 6 | 1551852 | 2500 | - | 2552 | = | -52 | * | (43 | / | 200) | = | -11.18 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Webber Elementary | -42 | ||||||||||||
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 | 48630 | 2431 | - | 2436 | = | -5 | * | (49 | / | 211) | = | -1.16113744 | ||
| 4 | 48633 | 2432 | - | 2485 | = | -53 | * | (57 | / | 211) | = | -14.31753554 | ||
| 5 | 48634 | 2467 | - | 2528 | = | -61 | * | (55 | / | 211) | = | -15.90047393 | ||
| 6 | 48637 | 2535 | - | 2552 | = | -17 | * | (50 | / | 211) | = | -4.02843601 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Webber Elementary | -35 | ||||||||||||
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 | 49950 | 2416 | - | 2436 | = | -20 | * | (56 | / | 207) | = | -5.410628 | ||
| 4 | 49953 | 2471 | - | 2485 | = | -14 | * | (48 | / | 207) | = | -3.2463768 | ||
| 5 | 49955 | 2433 | - | 2528 | = | -95 | * | (57 | / | 207) | = | -26.15942021 | ||
| 6 | 49956 | 2510 | - | 2552 | = | -42 | * | (46 | / | 207) | = | -9.33333332 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Webber Elementary | -44 | ||||||||||||
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 | 49967 | 2462 | - | 2436 | = | 26 | * | (37 | / | 196) | = | 4.90816326 | ||
| 4 | 49968 | 2468 | - | 2485 | = | -17 | * | (54 | / | 196) | = | -4.68367347 | ||
| 5 | 49971 | 2445 | - | 2528 | = | -83 | * | (50 | / | 196) | = | -21.17346932 | ||
| 6 | 49973 | 2483 | - | 2552 | = | -69 | * | (55 | / | 196) | = | -19.36224484 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Webber Elementary | -40 | ||||||||||||
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 | 50162 | 2407 | - | 2436 | = | -29 | * | (53 | / | 204) | = | -7.53431371 | ||
| 4 | 50163 | 2498 | - | 2485 | = | 13 | * | (44 | / | 204) | = | 2.80392156 | ||
| 5 | 50164 | 2484 | - | 2528 | = | -44 | * | (54 | / | 204) | = | -11.64705881 | ||
| 6 | 50165 | 2502 | - | 2552 | = | -50 | * | (53 | / | 204) | = | -12.99019605 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Webber Elementary | -29 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -42 | -35 | -44 | -40 | -29 | -190.0 | -38.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -20.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -56.0
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 | 78% | 93% | 90% | 92% | 92% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Westminster school district | County of Orange
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.
Webber Elementary math proficiency
Zero+ meets standard.
67% less $meal
84% less $meal
79% less $meal
81% less $meal
83% 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.