Wilson Middle (Data source)
Source data for Wilson Middle
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 |
||
| 6 | 2269616 | 2462 | - | 2552 | = | -90 | * | (221 | / | 615) | = | -32.34146337 | ||
| 7 | 2269617 | 2462 | - | 2567 | = | -105 | * | (194 | / | 615) | = | -33.12195117 | ||
| 8 | 2269620 | 2503 | - | 2586 | = | -83 | * | (200 | / | 615) | = | -26.99186992 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wilson Middle | -92 | ||||||||||||
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 |
||
| 6 | 69612 | 2460 | - | 2552 | = | -92 | * | (206 | / | 612) | = | -30.96732024 | ||
| 7 | 69614 | 2471 | - | 2567 | = | -96 | * | (217 | / | 612) | = | -34.03921565 | ||
| 8 | 69615 | 2490 | - | 2586 | = | -96 | * | (189 | / | 612) | = | -29.64705878 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wilson Middle | -95 | ||||||||||||
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 |
||
| 6 | 71444 | 2456 | - | 2552 | = | -96 | * | (224 | / | 655) | = | -32.83053427 | ||
| 7 | 71446 | 2460 | - | 2567 | = | -107 | * | (208 | / | 655) | = | -33.97862586 | ||
| 8 | 71448 | 2487 | - | 2586 | = | -99 | * | (223 | / | 655) | = | -33.70534349 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wilson Middle | -101 | ||||||||||||
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 |
||
| 6 | 71589 | 2470 | - | 2552 | = | -82 | * | (226 | / | 659) | = | -28.12139603 | ||
| 7 | 71591 | 2437 | - | 2567 | = | -130 | * | (234 | / | 659) | = | -46.16084967 | ||
| 8 | 71593 | 2498 | - | 2586 | = | -88 | * | (199 | / | 659) | = | -26.57359628 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wilson Middle | -101 | ||||||||||||
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 |
||
| 6 | 72075 | 2475 | - | 2552 | = | -77 | * | (209 | / | 653) | = | -24.64471664 | ||
| 7 | 72076 | 2473 | - | 2567 | = | -94 | * | (229 | / | 653) | = | -32.96477794 | ||
| 8 | 72077 | 2500 | - | 2586 | = | -86 | * | (215 | / | 653) | = | -28.31546706 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wilson Middle | -86 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -92 | -95 | -101 | -101 | -86 | -475.0 | -95.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -77.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -113.0
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 | 95% | 98% | 96% | 97% | 96% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Diego Unified school district | County of San Diego
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.
Wilson Middle math proficiency
Zero+ meets standard.
86% less $meal
91% less $meal
90% less $meal
91% less $meal
87% 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.