Graystone Elementary (Data source)
Source data for Graystone 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 | 2715577 | 2488 | - | 2436 | = | 52 | * | (120 | / | 401) | = | 15.56109724 | ||
| 4 | 2715578 | 2555 | - | 2485 | = | 70 | * | (137 | / | 401) | = | 23.91521195 | ||
| 5 | 2715581 | 2591 | - | 2528 | = | 63 | * | (144 | / | 401) | = | 22.62344137 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Graystone Elementary | 62 | ||||||||||||
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 | 82667 | 2508 | - | 2436 | = | 72 | * | (111 | / | 380) | = | 21.03157894 | ||
| 4 | 82668 | 2566 | - | 2485 | = | 81 | * | (129 | / | 380) | = | 27.4973684 | ||
| 5 | 82670 | 2592 | - | 2528 | = | 64 | * | (140 | / | 380) | = | 23.57894733 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Graystone Elementary | 72 | ||||||||||||
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 | 84959 | 2528 | - | 2436 | = | 92 | * | (114 | / | 361) | = | 29.05263152 | ||
| 4 | 84961 | 2558 | - | 2485 | = | 73 | * | (118 | / | 361) | = | 23.86149584 | ||
| 5 | 84962 | 2601 | - | 2528 | = | 73 | * | (129 | / | 361) | = | 26.08587256 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Graystone Elementary | 79 | ||||||||||||
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 | 85175 | 2542 | - | 2436 | = | 106 | * | (83 | / | 330) | = | 26.66060601 | ||
| 4 | 85176 | 2562 | - | 2485 | = | 77 | * | (127 | / | 330) | = | 29.63333327 | ||
| 5 | 85179 | 2593 | - | 2528 | = | 65 | * | (120 | / | 330) | = | 23.6363636 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Graystone Elementary | 80 | ||||||||||||
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 | 85768 | 2548 | - | 2436 | = | 112 | * | (87 | / | 303) | = | 32.15841574 | ||
| 4 | 85769 | 2565 | - | 2485 | = | 80 | * | (90 | / | 303) | = | 23.76237616 | ||
| 5 | 85770 | 2612 | - | 2528 | = | 84 | * | (126 | / | 303) | = | 34.93069306 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Graystone Elementary | 91 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 62 | 72 | 79 | 80 | 91 | 384.0 | 76.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 106.8
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 | 8% | 7% | 7% | 9% | 8% |
| 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.
Graystone Elementary math proficiency
Zero+ meets standard.
7% less $meal
6% less $meal
6% less $meal
7% less $meal
7% 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.