Schallenberger Elementary (Data source)
Source data for Schallenberger 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 | 2711091 | 2446 | - | 2436 | = | 10 | * | (88 | / | 260) | = | 3.38461538 | ||
| 4 | 2711094 | 2488 | - | 2485 | = | 3 | * | (79 | / | 260) | = | 0.91153846 | ||
| 5 | 2711095 | 2508 | - | 2528 | = | -20 | * | (93 | / | 260) | = | -7.15384614 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Schallenberger Elementary | -3 | ||||||||||||
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 | 82547 | 2458 | - | 2436 | = | 22 | * | (70 | / | 246) | = | 6.26016259 | ||
| 4 | 82548 | 2479 | - | 2485 | = | -6 | * | (93 | / | 246) | = | -2.26829268 | ||
| 5 | 82551 | 2506 | - | 2528 | = | -22 | * | (83 | / | 246) | = | -7.42276421 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Schallenberger 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 | 84838 | 2449 | - | 2436 | = | 13 | * | (69 | / | 235) | = | 3.81702127 | ||
| 4 | 84841 | 2500 | - | 2485 | = | 15 | * | (75 | / | 235) | = | 4.78723404 | ||
| 5 | 84843 | 2508 | - | 2528 | = | -20 | * | (91 | / | 235) | = | -7.74468084 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Schallenberger 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 | 85055 | 2443 | - | 2436 | = | 7 | * | (93 | / | 244) | = | 2.66803278 | ||
| 4 | 85056 | 2482 | - | 2485 | = | -3 | * | (74 | / | 244) | = | -0.90983606 | ||
| 5 | 85059 | 2507 | - | 2528 | = | -21 | * | (77 | / | 244) | = | -6.62704917 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Schallenberger Elementary | -5 | ||||||||||||
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 | 85648 | 2429 | - | 2436 | = | -7 | * | (80 | / | 246) | = | -2.27642276 | ||
| 4 | 85649 | 2482 | - | 2485 | = | -3 | * | (92 | / | 246) | = | -1.12195122 | ||
| 5 | 85650 | 2514 | - | 2528 | = | -14 | * | (74 | / | 246) | = | -4.21138211 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Schallenberger Elementary | -8 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -3 | -3 | 1 | -5 | -8 | -18.0 | -3.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 5.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -12.6
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 | 23% | 26% | 24% | 26% | 22% |
| 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.
Schallenberger Elementary math proficiency
Zero+ meets standard.
17% less $meal
22% less $meal
19% less $meal
22% less $meal
18% 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.