O. S. Hubbard Elementary (Data source)
Source data for O. S. Hubbard 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 | 2619824 | 2405 | - | 2436 | = | -31 | * | (95 | / | 282) | = | -10.44326239 | ||
| 4 | 2619827 | 2433 | - | 2485 | = | -52 | * | (93 | / | 282) | = | -17.14893617 | ||
| 5 | 2619828 | 2495 | - | 2528 | = | -33 | * | (94 | / | 282) | = | -10.99999999 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for O. S. Hubbard Elementary | -39 | ||||||||||||
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 | 79945 | 2424 | - | 2436 | = | -12 | * | (74 | / | 265) | = | -3.3509434 | ||
| 4 | 79947 | 2428 | - | 2485 | = | -57 | * | (99 | / | 265) | = | -21.29433959 | ||
| 5 | 79950 | 2496 | - | 2528 | = | -32 | * | (92 | / | 265) | = | -11.10943395 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for O. S. Hubbard Elementary | -36 | ||||||||||||
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 | 82133 | 2411 | - | 2436 | = | -25 | * | (81 | / | 307) | = | -6.5960912 | ||
| 4 | 82135 | 2443 | - | 2485 | = | -42 | * | (73 | / | 307) | = | -9.98697067 | ||
| 5 | 82136 | 2483 | - | 2528 | = | -45 | * | (88 | / | 307) | = | -12.8990228 | ||
| 6 | 82139 | 2479 | - | 2552 | = | -73 | * | (65 | / | 307) | = | -15.45602603 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for O. S. Hubbard Elementary | -45 | ||||||||||||
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 | 82331 | 2394 | - | 2436 | = | -42 | * | (80 | / | 338) | = | -9.94082838 | ||
| 4 | 82333 | 2430 | - | 2485 | = | -55 | * | (76 | / | 338) | = | -12.36686391 | ||
| 5 | 82335 | 2495 | - | 2528 | = | -33 | * | (62 | / | 338) | = | -6.05325442 | ||
| 6 | 82337 | 2461 | - | 2552 | = | -91 | * | (61 | / | 338) | = | -16.42307685 | ||
| 7 | 82339 | 2562 | - | 2567 | = | -5 | * | (59 | / | 338) | = | -0.87278107 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for O. S. Hubbard Elementary | -46 | ||||||||||||
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 | 82949 | 2411 | - | 2436 | = | -25 | * | (75 | / | 376) | = | -4.98670213 | ||
| 4 | 82950 | 2404 | - | 2485 | = | -81 | * | (79 | / | 376) | = | -17.01861694 | ||
| 5 | 82951 | 2439 | - | 2528 | = | -89 | * | (62 | / | 376) | = | -14.67553191 | ||
| 6 | 82952 | 2520 | - | 2552 | = | -32 | * | (51 | / | 376) | = | -4.3404255 | ||
| 7 | 82953 | 2478 | - | 2567 | = | -89 | * | (54 | / | 376) | = | -12.78191487 | ||
| 8 | 82954 | 2534 | - | 2586 | = | -52 | * | (55 | / | 376) | = | -7.60638294 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for O. S. Hubbard Elementary | -61 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -39 | -36 | -45 | -46 | -61 | -227.0 | -45.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -18.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -72.4
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 | 93% | 93% | 94% | 91% | 91% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alum Rock Union 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.
O. S. Hubbard Elementary math proficiency
Zero+ meets standard.
81% less $meal
82% less $meal
80% less $meal
78% less $meal
77% 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.