Brightwood Elementary (Data source)
Source data for Brightwood 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 | 1209610 | 2463 | - | 2436 | = | 27 | * | (111 | / | 668) | = | 4.48652693 | ||
4 | 1209613 | 2499 | - | 2485 | = | 14 | * | (100 | / | 668) | = | 2.09580837 | ||
5 | 1209614 | 2517 | - | 2528 | = | -11 | * | (103 | / | 668) | = | -1.69610778 | ||
6 | 1209617 | 2565 | - | 2552 | = | 13 | * | (107 | / | 668) | = | 2.08233532 | ||
7 | 1209618 | 2573 | - | 2567 | = | 6 | * | (126 | / | 668) | = | 1.13173652 | ||
8 | 1209621 | 2703 | - | 2586 | = | 117 | * | (121 | / | 668) | = | 21.19311371 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Brightwood Elementary | 29 |
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 | 37597 | 2459 | - | 2436 | = | 23 | * | (118 | / | 660) | = | 4.11212119 | ||
4 | 37600 | 2504 | - | 2485 | = | 19 | * | (103 | / | 660) | = | 2.96515151 | ||
5 | 37602 | 2545 | - | 2528 | = | 17 | * | (99 | / | 660) | = | 2.55 | ||
6 | 37604 | 2564 | - | 2552 | = | 12 | * | (99 | / | 660) | = | 1.8 | ||
7 | 37606 | 2582 | - | 2567 | = | 15 | * | (115 | / | 660) | = | 2.61363636 | ||
8 | 37608 | 2661 | - | 2586 | = | 75 | * | (126 | / | 660) | = | 14.31818175 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Brightwood Elementary | 28 |
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 | 38454 | 2479 | - | 2436 | = | 43 | * | (118 | / | 654) | = | 7.75840976 | ||
4 | 38455 | 2502 | - | 2485 | = | 17 | * | (115 | / | 654) | = | 2.98929663 | ||
5 | 38458 | 2535 | - | 2528 | = | 7 | * | (105 | / | 654) | = | 1.12385321 | ||
6 | 38459 | 2585 | - | 2552 | = | 33 | * | (102 | / | 654) | = | 5.14678897 | ||
7 | 38462 | 2580 | - | 2567 | = | 13 | * | (100 | / | 654) | = | 1.98776757 | ||
8 | 38463 | 2654 | - | 2586 | = | 68 | * | (114 | / | 654) | = | 11.85321097 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Brightwood Elementary | 31 |
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 | 38429 | 2489 | - | 2436 | = | 53 | * | (119 | / | 664) | = | 9.49849395 | ||
4 | 38431 | 2490 | - | 2485 | = | 5 | * | (124 | / | 664) | = | 0.93373494 | ||
5 | 38433 | 2544 | - | 2528 | = | 16 | * | (115 | / | 664) | = | 2.77108434 | ||
6 | 38435 | 2583 | - | 2552 | = | 31 | * | (107 | / | 664) | = | 4.99548192 | ||
7 | 38437 | 2610 | - | 2567 | = | 43 | * | (102 | / | 664) | = | 6.60542165 | ||
8 | 38439 | 2666 | - | 2586 | = | 80 | * | (97 | / | 664) | = | 11.68674696 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Brightwood Elementary | 36 |
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 | 38629 | 2475 | - | 2436 | = | 39 | * | (86 | / | 638) | = | 5.25705328 | ||
4 | 38630 | 2502 | - | 2485 | = | 17 | * | (122 | / | 638) | = | 3.25078369 | ||
5 | 38631 | 2528 | - | 2528 | = | 0 | * | (117 | / | 638) | = | 0.0 | ||
6 | 38632 | 2567 | - | 2552 | = | 15 | * | (115 | / | 638) | = | 2.70376175 | ||
7 | 38633 | 2608 | - | 2567 | = | 41 | * | (101 | / | 638) | = | 6.49059561 | ||
8 | 38634 | 2704 | - | 2586 | = | 118 | * | (97 | / | 638) | = | 17.94043881 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Brightwood Elementary | 36 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
29 | 28 | 31 | 36 | 36 | 160.0 | 32.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 41.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 23.0
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 | 42% | 38% | 41% | 44% | 38% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alhambra Unified school district | County of Los Angeles
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.
Brightwood Elementary math proficiency
Zero+ meets standard.
30% less $meal
29% less $meal
30% less $meal
35% less $meal
32% 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.