Garfield Elementary (Data source)
Source data for Garfield 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 | 1210991 | 2434 | - | 2436 | = | -2 | * | (71 | / | 449) | = | -0.31625835 | ||
4 | 1210992 | 2458 | - | 2485 | = | -27 | * | (74 | / | 449) | = | -4.44988863 | ||
5 | 1210995 | 2505 | - | 2528 | = | -23 | * | (75 | / | 449) | = | -3.8418708 | ||
6 | 1210996 | 2518 | - | 2552 | = | -34 | * | (70 | / | 449) | = | -5.30066814 | ||
7 | 1210999 | 2540 | - | 2567 | = | -27 | * | (77 | / | 449) | = | -4.63028951 | ||
8 | 1211000 | 2565 | - | 2586 | = | -21 | * | (82 | / | 449) | = | -3.8351893 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Garfield Elementary | -22 |
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 | 37639 | 2424 | - | 2436 | = | -12 | * | (48 | / | 419) | = | -1.37470166 | ||
4 | 37642 | 2480 | - | 2485 | = | -5 | * | (71 | / | 419) | = | -0.84725537 | ||
5 | 37643 | 2499 | - | 2528 | = | -29 | * | (69 | / | 419) | = | -4.77565632 | ||
6 | 37646 | 2526 | - | 2552 | = | -26 | * | (80 | / | 419) | = | -4.96420046 | ||
7 | 37647 | 2562 | - | 2567 | = | -5 | * | (71 | / | 419) | = | -0.84725537 | ||
8 | 37649 | 2576 | - | 2586 | = | -10 | * | (80 | / | 419) | = | -1.90930787 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Garfield Elementary | -15 |
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 | 38496 | 2447 | - | 2436 | = | 11 | * | (67 | / | 409) | = | 1.80195598 | ||
4 | 38497 | 2507 | - | 2485 | = | 22 | * | (54 | / | 409) | = | 2.90464546 | ||
5 | 38499 | 2518 | - | 2528 | = | -10 | * | (68 | / | 409) | = | -1.66259168 | ||
6 | 38502 | 2529 | - | 2552 | = | -23 | * | (73 | / | 409) | = | -4.10513446 | ||
7 | 38503 | 2582 | - | 2567 | = | 15 | * | (79 | / | 409) | = | 2.89731051 | ||
8 | 38505 | 2568 | - | 2586 | = | -18 | * | (68 | / | 409) | = | -2.99266502 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Garfield Elementary | -1 |
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 | 38470 | 2422 | - | 2436 | = | -14 | * | (69 | / | 408) | = | -2.36764706 | ||
4 | 38473 | 2509 | - | 2485 | = | 24 | * | (64 | / | 408) | = | 3.76470588 | ||
5 | 38474 | 2523 | - | 2528 | = | -5 | * | (57 | / | 408) | = | -0.69852941 | ||
6 | 38477 | 2543 | - | 2552 | = | -9 | * | (64 | / | 408) | = | -1.41176471 | ||
7 | 38478 | 2572 | - | 2567 | = | 5 | * | (76 | / | 408) | = | 0.93137255 | ||
8 | 38481 | 2618 | - | 2586 | = | 32 | * | (78 | / | 408) | = | 6.11764704 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Garfield Elementary | 6 |
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 | 38671 | 2447 | - | 2436 | = | 11 | * | (55 | / | 370) | = | 1.63513513 | ||
4 | 38672 | 2494 | - | 2485 | = | 9 | * | (63 | / | 370) | = | 1.53243243 | ||
5 | 38673 | 2544 | - | 2528 | = | 16 | * | (59 | / | 370) | = | 2.55135134 | ||
6 | 38674 | 2585 | - | 2552 | = | 33 | * | (62 | / | 370) | = | 5.52972971 | ||
7 | 38675 | 2582 | - | 2567 | = | 15 | * | (64 | / | 370) | = | 2.59459458 | ||
8 | 38676 | 2596 | - | 2586 | = | 10 | * | (67 | / | 370) | = | 1.81081081 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Garfield Elementary | 16 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-22 | -15 | -1 | 6 | 16 | -16.0 | -3.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 41.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -48.2
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 | 69% | 67% | 61% | 68% | 58% |
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.
Garfield Elementary math proficiency
Zero+ meets standard.
53% less $meal
51% less $meal
44% less $meal
56% less $meal
47% 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.