Emma Wilson Elementary (Data source)
Source data for Emma Wilson 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 | 142140 | 2409 | - | 2436 | = | -27 | * | (82 | / | 310) | = | -7.14193548 | ||
| 4 | 142141 | 2462 | - | 2485 | = | -23 | * | (60 | / | 310) | = | -4.4516129 | ||
| 5 | 142144 | 2507 | - | 2528 | = | -21 | * | (84 | / | 310) | = | -5.69032256 | ||
| 6 | 142145 | 2491 | - | 2552 | = | -61 | * | (84 | / | 310) | = | -16.5290322 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Emma Wilson Elementary | -34 | ||||||||||||
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 | 4114 | 2439 | - | 2436 | = | 3 | * | (96 | / | 326) | = | 0.88343558 | ||
| 4 | 4115 | 2467 | - | 2485 | = | -18 | * | (80 | / | 326) | = | -4.41717791 | ||
| 5 | 4117 | 2537 | - | 2528 | = | 9 | * | (63 | / | 326) | = | 1.7392638 | ||
| 6 | 4120 | 2529 | - | 2552 | = | -23 | * | (87 | / | 326) | = | -6.1380368 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Emma Wilson Elementary | -8 | ||||||||||||
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 | 4189 | 2416 | - | 2436 | = | -20 | * | (78 | / | 247) | = | -6.31578946 | ||
| 4 | 4192 | 2479 | - | 2485 | = | -6 | * | (87 | / | 247) | = | -2.11336032 | ||
| 5 | 4193 | 2506 | - | 2528 | = | -22 | * | (82 | / | 247) | = | -7.30364371 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Emma Wilson 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 | 4191 | 2415 | - | 2436 | = | -21 | * | (81 | / | 251) | = | -6.77689242 | ||
| 4 | 4194 | 2468 | - | 2485 | = | -17 | * | (75 | / | 251) | = | -5.07968126 | ||
| 5 | 4195 | 2528 | - | 2528 | = | 0 | * | (95 | / | 251) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Emma Wilson Elementary | -12 | ||||||||||||
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 | 4245 | 2430 | - | 2436 | = | -6 | * | (102 | / | 278) | = | -2.20143884 | ||
| 4 | 4246 | 2469 | - | 2485 | = | -16 | * | (86 | / | 278) | = | -4.94964027 | ||
| 5 | 4247 | 2507 | - | 2528 | = | -21 | * | (90 | / | 278) | = | -6.79856115 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Emma Wilson Elementary | -14 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -34 | -8 | -16 | -12 | -14 | -84.0 | -16.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 13.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -46.8
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 | 46% | 49% | 48% | 56% | 62% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Chico Unified school district | County of Butte
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.
Emma Wilson Elementary math proficiency
Zero+ meets standard.
39% less $meal
42% less $meal
40% less $meal
49% less $meal
50% 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.