Bay Farm (Data source)
Source data for Bay Farm
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 | 12546 | 2447 | - | 2436 | = | 11 | * | (68 | / | 347) | = | 2.15561959 | ||
| 4 | 12547 | 2537 | - | 2485 | = | 52 | * | (74 | / | 347) | = | 11.08933717 | ||
| 5 | 12550 | 2543 | - | 2528 | = | 15 | * | (82 | / | 347) | = | 3.54466859 | ||
| 6 | 12551 | 2586 | - | 2552 | = | 34 | * | (57 | / | 347) | = | 5.58501439 | ||
| 7 | 12554 | 2625 | - | 2567 | = | 58 | * | (41 | / | 347) | = | 6.8530259 | ||
| 8 | 12555 | 2549 | - | 2586 | = | -37 | * | (25 | / | 347) | = | -2.66570603 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bay Farm | 27 | ||||||||||||
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 | 351 | 2465 | - | 2436 | = | 29 | * | (90 | / | 379) | = | 6.88654352 | ||
| 4 | 353 | 2516 | - | 2485 | = | 31 | * | (77 | / | 379) | = | 6.29815301 | ||
| 5 | 355 | 2576 | - | 2528 | = | 48 | * | (78 | / | 379) | = | 9.87862795 | ||
| 6 | 357 | 2598 | - | 2552 | = | 46 | * | (64 | / | 379) | = | 7.76781001 | ||
| 7 | 359 | 2620 | - | 2567 | = | 53 | * | (41 | / | 379) | = | 5.73350921 | ||
| 8 | 361 | 2603 | - | 2586 | = | 17 | * | (29 | / | 379) | = | 1.30079155 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bay Farm | 38 | ||||||||||||
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 | 366 | 2495 | - | 2436 | = | 59 | * | (70 | / | 402) | = | 10.27363183 | ||
| 4 | 367 | 2530 | - | 2485 | = | 45 | * | (90 | / | 402) | = | 10.07462687 | ||
| 5 | 370 | 2541 | - | 2528 | = | 13 | * | (95 | / | 402) | = | 3.07213929 | ||
| 6 | 371 | 2622 | - | 2552 | = | 70 | * | (53 | / | 402) | = | 9.22885572 | ||
| 7 | 374 | 2636 | - | 2567 | = | 69 | * | (58 | / | 402) | = | 9.95522381 | ||
| 8 | 376 | 2622 | - | 2586 | = | 36 | * | (36 | / | 402) | = | 3.22388057 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bay Farm | 46 | ||||||||||||
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 | 388 | 2483 | - | 2436 | = | 47 | * | (72 | / | 408) | = | 8.29411764 | ||
| 4 | 390 | 2549 | - | 2485 | = | 64 | * | (80 | / | 408) | = | 12.54901958 | ||
| 5 | 392 | 2568 | - | 2528 | = | 40 | * | (99 | / | 408) | = | 9.70588232 | ||
| 6 | 394 | 2581 | - | 2552 | = | 29 | * | (57 | / | 408) | = | 4.05147058 | ||
| 7 | 396 | 2637 | - | 2567 | = | 70 | * | (46 | / | 408) | = | 7.89215686 | ||
| 8 | 398 | 2643 | - | 2586 | = | 57 | * | (54 | / | 408) | = | 7.54411764 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bay Farm | 50 | ||||||||||||
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 | 420 | 2504 | - | 2436 | = | 68 | * | (73 | / | 375) | = | 13.23733329 | ||
| 4 | 421 | 2518 | - | 2485 | = | 33 | * | (72 | / | 375) | = | 6.336 | ||
| 5 | 422 | 2586 | - | 2528 | = | 58 | * | (81 | / | 375) | = | 12.528 | ||
| 6 | 423 | 2615 | - | 2552 | = | 63 | * | (60 | / | 375) | = | 10.08 | ||
| 7 | 424 | 2590 | - | 2567 | = | 23 | * | (50 | / | 375) | = | 3.06666666 | ||
| 8 | 425 | 2642 | - | 2586 | = | 56 | * | (39 | / | 375) | = | 5.824 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bay Farm | 51 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 27 | 38 | 46 | 50 | 51 | 212.0 | 42.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 72.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 12.4
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 | 8% | 6% | 9% | 11% | 10% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alameda 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.
Bay Farm math proficiency
Zero+ meets standard.
6% less $meal
4% less $meal
8% less $meal
9% less $meal
9% 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.
Elementary School (Public) schools in Alameda Unified (9)
| Amelia Earhart Elementary | Bay Farm | Edison Elementary |
| Frank Otis Elementary | Franklin Elementary | Love Elementary |
| Maya Lin | Ruby Bridges Elementary | William G. Paden Elementary |