Wilson Elementary (Data source)
Source data for 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 | 159352 | 2422 | - | 2436 | = | -14 | * | (145 | / | 460) | = | -4.41304347 | ||
| 4 | 159355 | 2448 | - | 2485 | = | -37 | * | (154 | / | 460) | = | -12.3869565 | ||
| 5 | 159356 | 2477 | - | 2528 | = | -51 | * | (161 | / | 460) | = | -17.85 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wilson Elementary | -35 | ||||||||||||
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 | 4711 | 2424 | - | 2436 | = | -12 | * | (148 | / | 441) | = | -4.02721088 | ||
| 4 | 4713 | 2478 | - | 2485 | = | -7 | * | (142 | / | 441) | = | -2.25396825 | ||
| 5 | 4716 | 2495 | - | 2528 | = | -33 | * | (151 | / | 441) | = | -11.29931972 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wilson 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 | 4816 | 2428 | - | 2436 | = | -8 | * | (138 | / | 425) | = | -2.59764706 | ||
| 4 | 4818 | 2454 | - | 2485 | = | -31 | * | (148 | / | 425) | = | -10.79529411 | ||
| 5 | 4820 | 2493 | - | 2528 | = | -35 | * | (139 | / | 425) | = | -11.44705881 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wilson Elementary | -25 | ||||||||||||
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 | 4805 | 2447 | - | 2436 | = | 11 | * | (136 | / | 427) | = | 3.50351287 | ||
| 4 | 4808 | 2468 | - | 2485 | = | -17 | * | (145 | / | 427) | = | -5.77283372 | ||
| 5 | 4809 | 2489 | - | 2528 | = | -39 | * | (146 | / | 427) | = | -13.33489459 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wilson Elementary | -16 | ||||||||||||
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 | 4835 | 2429 | - | 2436 | = | -7 | * | (162 | / | 449) | = | -2.52561247 | ||
| 4 | 4836 | 2470 | - | 2485 | = | -15 | * | (144 | / | 449) | = | -4.81069041 | ||
| 5 | 4837 | 2473 | - | 2528 | = | -55 | * | (143 | / | 449) | = | -17.51670377 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wilson Elementary | -25 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -35 | -18 | -25 | -16 | -25 | -119.0 | -23.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -2.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -44.8
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 | 78% | 67% | 31% | 78% | 78% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Gridley Unified school district County of Butte
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Wilson Elementary math proficiency
Zero+ meets standard.
69% less $meal
59% less $meal
31% less $meal
71% less $meal
68% 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 Gridley Unified (2)
| McKinley Elementary | Wilson Elementary |