Willow Glen Elementary (Data source)
Source data for Willow Glen 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 | 2713260 | 2437 | - | 2436 | = | 1 | * | (128 | / | 349) | = | 0.36676218 | ||
| 4 | 2713261 | 2502 | - | 2485 | = | 17 | * | (102 | / | 349) | = | 4.96848137 | ||
| 5 | 2713264 | 2485 | - | 2528 | = | -43 | * | (119 | / | 349) | = | -14.66189112 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Willow Glen Elementary | -9 | ||||||||||||
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 | 82611 | 2444 | - | 2436 | = | 8 | * | (143 | / | 364) | = | 3.14285714 | ||
| 4 | 82612 | 2487 | - | 2485 | = | 2 | * | (120 | / | 364) | = | 0.65934066 | ||
| 5 | 82614 | 2526 | - | 2528 | = | -2 | * | (101 | / | 364) | = | -0.55494505 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Willow Glen Elementary | 3 | ||||||||||||
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 | 84903 | 2446 | - | 2436 | = | 10 | * | (121 | / | 380) | = | 3.18421052 | ||
| 4 | 84905 | 2486 | - | 2485 | = | 1 | * | (143 | / | 380) | = | 0.37631579 | ||
| 5 | 84907 | 2514 | - | 2528 | = | -14 | * | (116 | / | 380) | = | -4.2736842 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Willow Glen Elementary | -1 | ||||||||||||
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 | 85119 | 2447 | - | 2436 | = | 11 | * | (116 | / | 375) | = | 3.40266666 | ||
| 4 | 85120 | 2482 | - | 2485 | = | -3 | * | (120 | / | 375) | = | -0.96 | ||
| 5 | 85123 | 2498 | - | 2528 | = | -30 | * | (139 | / | 375) | = | -11.11999998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Willow Glen Elementary | -9 | ||||||||||||
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 | 85712 | 2429 | - | 2436 | = | -7 | * | (130 | / | 354) | = | -2.57062147 | ||
| 4 | 85713 | 2494 | - | 2485 | = | 9 | * | (109 | / | 354) | = | 2.77118644 | ||
| 5 | 85714 | 2491 | - | 2528 | = | -37 | * | (115 | / | 354) | = | -12.01977401 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Willow Glen Elementary | -12 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -9 | 3 | -1 | -9 | -12 | -28.0 | -5.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 12.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -23.6
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 | 34% | 35% | 34% | 36% | 30% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Jose Unified school district | County of Santa Clara
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.
Willow Glen Elementary math proficiency
Zero+ meets standard.
28% less $meal
29% less $meal
27% less $meal
32% less $meal
23% 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.