Washington Elementary (Data source)
Source data for Washington 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 | 2712796 | 2394 | - | 2436 | = | -42 | * | (73 | / | 230) | = | -13.33043477 | ||
| 4 | 2712797 | 2437 | - | 2485 | = | -48 | * | (71 | / | 230) | = | -14.8173913 | ||
| 5 | 2712800 | 2447 | - | 2528 | = | -81 | * | (86 | / | 230) | = | -30.28695648 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Washington Elementary | -58 | ||||||||||||
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 | 82595 | 2408 | - | 2436 | = | -28 | * | (71 | / | 216) | = | -9.20370368 | ||
| 4 | 82596 | 2462 | - | 2485 | = | -23 | * | (71 | / | 216) | = | -7.56018517 | ||
| 5 | 82599 | 2460 | - | 2528 | = | -68 | * | (74 | / | 216) | = | -23.29629626 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Washington Elementary | -40 | ||||||||||||
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 | 84886 | 2414 | - | 2436 | = | -22 | * | (74 | / | 210) | = | -7.75238094 | ||
| 4 | 84888 | 2457 | - | 2485 | = | -28 | * | (70 | / | 210) | = | -9.33333332 | ||
| 5 | 84890 | 2458 | - | 2528 | = | -70 | * | (66 | / | 210) | = | -21.99999998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Washington Elementary | -39 | ||||||||||||
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 | 85103 | 2403 | - | 2436 | = | -33 | * | (85 | / | 233) | = | -12.03862658 | ||
| 4 | 85105 | 2463 | - | 2485 | = | -22 | * | (75 | / | 233) | = | -7.08154506 | ||
| 5 | 85107 | 2449 | - | 2528 | = | -79 | * | (73 | / | 233) | = | -24.75107296 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Washington Elementary | -44 | ||||||||||||
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 | 85696 | 2410 | - | 2436 | = | -26 | * | (75 | / | 220) | = | -8.86363634 | ||
| 4 | 85697 | 2469 | - | 2485 | = | -16 | * | (74 | / | 220) | = | -5.38181818 | ||
| 5 | 85698 | 2486 | - | 2528 | = | -42 | * | (71 | / | 220) | = | -13.55454542 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Washington Elementary | -28 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -58 | -40 | -39 | -44 | -28 | -209.0 | -41.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -11.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.8
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 | 89% | 90% | 94% | 90% | 88% |
| 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.
Washington Elementary math proficiency
Zero+ meets standard.
80% less $meal
82% less $meal
84% less $meal
82% less $meal
76% 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.