Longwood Elementary (Data source)
Source data for Longwood 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 | 47905 | 2385 | - | 2436 | = | -51 | * | (104 | / | 384) | = | -13.81249998 | ||
| 4 | 47908 | 2419 | - | 2485 | = | -66 | * | (98 | / | 384) | = | -16.84374998 | ||
| 5 | 47909 | 2437 | - | 2528 | = | -91 | * | (99 | / | 384) | = | -23.4609375 | ||
| 6 | 47912 | 2501 | - | 2552 | = | -51 | * | (83 | / | 384) | = | -11.02343748 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Longwood 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 | 1286 | 2376 | - | 2436 | = | -60 | * | (80 | / | 374) | = | -12.83422458 | ||
| 4 | 1287 | 2415 | - | 2485 | = | -70 | * | (113 | / | 374) | = | -21.14973259 | ||
| 5 | 1289 | 2426 | - | 2528 | = | -102 | * | (91 | / | 374) | = | -24.81818182 | ||
| 6 | 1292 | 2472 | - | 2552 | = | -80 | * | (90 | / | 374) | = | -19.25133688 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Longwood Elementary | -78 | ||||||||||||
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 | 1323 | 2392 | - | 2436 | = | -44 | * | (99 | / | 386) | = | -11.28497405 | ||
| 4 | 1326 | 2420 | - | 2485 | = | -65 | * | (91 | / | 386) | = | -15.32383418 | ||
| 5 | 1328 | 2436 | - | 2528 | = | -92 | * | (102 | / | 386) | = | -24.31088077 | ||
| 6 | 1329 | 2447 | - | 2552 | = | -105 | * | (94 | / | 386) | = | -25.56994818 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Longwood Elementary | -76 | ||||||||||||
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 | 1354 | 2380 | - | 2436 | = | -56 | * | (83 | / | 355) | = | -13.0929577 | ||
| 4 | 1356 | 2431 | - | 2485 | = | -54 | * | (99 | / | 355) | = | -15.05915491 | ||
| 5 | 1358 | 2461 | - | 2528 | = | -67 | * | (80 | / | 355) | = | -15.0985915 | ||
| 6 | 1360 | 2457 | - | 2552 | = | -95 | * | (93 | / | 355) | = | -24.88732385 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Longwood Elementary | -68 | ||||||||||||
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 | 1380 | 2402 | - | 2436 | = | -34 | * | (83 | / | 352) | = | -8.01704544 | ||
| 4 | 1381 | 2427 | - | 2485 | = | -58 | * | (87 | / | 352) | = | -14.33522722 | ||
| 5 | 1382 | 2455 | - | 2528 | = | -73 | * | (104 | / | 352) | = | -21.56818179 | ||
| 6 | 1383 | 2467 | - | 2552 | = | -85 | * | (78 | / | 352) | = | -18.83522727 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Longwood Elementary | -63 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -78 | -76 | -68 | -63 | -350.0 | -70.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -88.0
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 | 89% | 88% | 80% | 70% | 79% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Hayward Unified school district | County of Alameda
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.
Longwood Elementary math proficiency
Zero+ meets standard.
80% less $meal
80% less $meal
69% less $meal
64% less $meal
75% 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.