Anderson (Alex) Elementary (Data source)
Source data for Anderson (Alex) 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 | 2689091 | 2357 | - | 2436 | = | -79 | * | (62 | / | 257) | = | -19.05836574 | ||
| 4 | 2689094 | 2453 | - | 2485 | = | -32 | * | (57 | / | 257) | = | -7.09727626 | ||
| 5 | 2689095 | 2465 | - | 2528 | = | -63 | * | (72 | / | 257) | = | -17.64980545 | ||
| 6 | 2689098 | 2506 | - | 2552 | = | -46 | * | (66 | / | 257) | = | -11.81322955 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Anderson (Alex) Elementary | -56 | ||||||||||||
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 | 81931 | 2391 | - | 2436 | = | -45 | * | (56 | / | 252) | = | -9.99999999 | ||
| 4 | 81932 | 2451 | - | 2485 | = | -34 | * | (64 | / | 252) | = | -8.6349206 | ||
| 5 | 81935 | 2494 | - | 2528 | = | -34 | * | (58 | / | 252) | = | -7.82539682 | ||
| 6 | 81937 | 2490 | - | 2552 | = | -62 | * | (74 | / | 252) | = | -18.20634917 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Anderson (Alex) Elementary | -45 | ||||||||||||
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 | 84218 | 2423 | - | 2436 | = | -13 | * | (62 | / | 267) | = | -3.01872658 | ||
| 4 | 84220 | 2445 | - | 2485 | = | -40 | * | (64 | / | 267) | = | -9.58801496 | ||
| 5 | 84222 | 2501 | - | 2528 | = | -27 | * | (71 | / | 267) | = | -7.17977525 | ||
| 6 | 84225 | 2521 | - | 2552 | = | -31 | * | (70 | / | 267) | = | -8.1273408 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Anderson (Alex) Elementary | -28 | ||||||||||||
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 | 84436 | 2406 | - | 2436 | = | -30 | * | (66 | / | 280) | = | -7.07142855 | ||
| 4 | 84438 | 2456 | - | 2485 | = | -29 | * | (72 | / | 280) | = | -7.45714285 | ||
| 5 | 84440 | 2491 | - | 2528 | = | -37 | * | (69 | / | 280) | = | -9.11785713 | ||
| 6 | 84442 | 2521 | - | 2552 | = | -31 | * | (73 | / | 280) | = | -8.08214284 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Anderson (Alex) 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 | 85053 | 2403 | - | 2436 | = | -33 | * | (67 | / | 322) | = | -6.86645962 | ||
| 4 | 85054 | 2472 | - | 2485 | = | -13 | * | (86 | / | 322) | = | -3.47204969 | ||
| 5 | 85055 | 2485 | - | 2528 | = | -43 | * | (82 | / | 322) | = | -10.95031056 | ||
| 6 | 85056 | 2504 | - | 2552 | = | -48 | * | (87 | / | 322) | = | -12.96894408 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Anderson (Alex) Elementary | -34 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -56 | -45 | -28 | -32 | -34 | -195.0 | -39.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -6.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -72.0
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 | 49% | 49% | 45% | 48% | 52% |
| 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.
Anderson (Alex) Elementary math proficiency
Zero+ meets standard.
38% less $meal
38% less $meal
36% less $meal
40% less $meal
44% 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.