Del Roble Elementary (Data source)
Source data for Del Roble 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 | 2693300 | 2393 | - | 2436 | = | -43 | * | (68 | / | 262) | = | -11.16030531 | ||
| 4 | 2693301 | 2429 | - | 2485 | = | -56 | * | (68 | / | 262) | = | -14.5343511 | ||
| 5 | 2693304 | 2451 | - | 2528 | = | -77 | * | (57 | / | 262) | = | -16.75190833 | ||
| 6 | 2693305 | 2459 | - | 2552 | = | -93 | * | (64 | / | 262) | = | -22.71755724 | ||
| 7 | 2693308 | 0 | - | 2567 | = | * | (2 | / | 262) | = | ||||
| 8 | 2693309 | 0 | - | 2586 | = | * | (3 | / | 262) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Del Roble Elementary | -65 | ||||||||||||
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 | 82046 | 2435 | - | 2436 | = | -1 | * | (53 | / | 253) | = | -0.20948617 | ||
| 4 | 82048 | 2456 | - | 2485 | = | -29 | * | (66 | / | 253) | = | -7.56521739 | ||
| 5 | 82051 | 2442 | - | 2528 | = | -86 | * | (69 | / | 253) | = | -23.45454539 | ||
| 6 | 82052 | 2507 | - | 2552 | = | -45 | * | (57 | / | 253) | = | -10.13833989 | ||
| 7 | 82055 | 0 | - | 2567 | = | * | (1 | / | 253) | = | ||||
| 8 | 82056 | 0 | - | 2586 | = | * | (7 | / | 253) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Del Roble Elementary | -41 | ||||||||||||
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 | 84333 | 2408 | - | 2436 | = | -28 | * | (62 | / | 247) | = | -7.02834006 | ||
| 4 | 84335 | 2465 | - | 2485 | = | -20 | * | (55 | / | 247) | = | -4.45344128 | ||
| 5 | 84337 | 2453 | - | 2528 | = | -75 | * | (59 | / | 247) | = | -17.9149797 | ||
| 6 | 84339 | 2466 | - | 2552 | = | -86 | * | (66 | / | 247) | = | -22.97975702 | ||
| 7 | 84340 | 0 | - | 2567 | = | * | (0 | / | 247) | = | ||||
| 8 | 84343 | 0 | - | 2586 | = | * | (0 | / | 247) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Del Roble Elementary | -52 | ||||||||||||
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 | 84550 | 2442 | - | 2436 | = | 6 | * | (47 | / | 222) | = | 1.27027027 | ||
| 4 | 84552 | 2439 | - | 2485 | = | -46 | * | (58 | / | 222) | = | -12.01801801 | ||
| 5 | 84555 | 2463 | - | 2528 | = | -65 | * | (47 | / | 222) | = | -13.76126122 | ||
| 6 | 84556 | 2526 | - | 2552 | = | -26 | * | (60 | / | 222) | = | -7.02702702 | ||
| 7 | 84558 | 0 | - | 2567 | = | * | (0 | / | 222) | = | ||||
| 8 | 84560 | 0 | - | 2586 | = | * | (0 | / | 222) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Del Roble Elementary | -32 | ||||||||||||
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 | 85149 | 2418 | - | 2436 | = | -18 | * | (85 | / | 231) | = | -6.62337661 | ||
| 4 | 85150 | 2483 | - | 2485 | = | -2 | * | (40 | / | 231) | = | -0.34632035 | ||
| 5 | 85151 | 2430 | - | 2528 | = | -98 | * | (52 | / | 231) | = | -22.06060605 | ||
| 6 | 85152 | 2494 | - | 2552 | = | -58 | * | (50 | / | 231) | = | -12.55411253 | ||
| 7 | 85153 | 0 | - | 2567 | = | * | (0 | / | 231) | = | ||||
| 8 | 85154 | 0 | - | 2586 | = | * | (0 | / | 231) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Del Roble Elementary | -42 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -41 | -52 | -32 | -42 | -232.0 | -46.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -10.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -82.4
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 | 59% | 60% | 55% | 58% | 41% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Oak Grove Elementary 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.
Del Roble Elementary math proficiency
Zero+ meets standard.
46% less $meal
47% less $meal
41% less $meal
49% less $meal
33% 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.