Dr. J. Michael McGrath Elementary (Data source)
Source data for Dr. J. Michael McGrath 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 | 1044636 | 2437 | - | 2436 | = | 1 | * | (100 | / | 374) | = | 0.26737968 | ||
| 4 | 1044639 | 2472 | - | 2485 | = | -13 | * | (90 | / | 374) | = | -3.12834224 | ||
| 5 | 1044640 | 2522 | - | 2528 | = | -6 | * | (100 | / | 374) | = | -1.60427807 | ||
| 6 | 1044643 | 2539 | - | 2552 | = | -13 | * | (84 | / | 374) | = | -2.91978609 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Dr. J. Michael McGrath Elementary | -7 | ||||||||||||
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 | 32817 | 2453 | - | 2436 | = | 17 | * | (111 | / | 400) | = | 4.7175 | ||
| 4 | 32818 | 2471 | - | 2485 | = | -14 | * | (102 | / | 400) | = | -3.57 | ||
| 5 | 32821 | 2536 | - | 2528 | = | 8 | * | (86 | / | 400) | = | 1.72 | ||
| 6 | 32823 | 2531 | - | 2552 | = | -21 | * | (101 | / | 400) | = | -5.3025 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Dr. J. Michael McGrath Elementary | -2 | ||||||||||||
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 | 33387 | 2439 | - | 2436 | = | 3 | * | (102 | / | 400) | = | 0.765 | ||
| 4 | 33388 | 2470 | - | 2485 | = | -15 | * | (107 | / | 400) | = | -4.0125 | ||
| 5 | 33391 | 2520 | - | 2528 | = | -8 | * | (103 | / | 400) | = | -2.06 | ||
| 6 | 33392 | 2543 | - | 2552 | = | -9 | * | (88 | / | 400) | = | -1.98 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Dr. J. Michael McGrath Elementary | -7 | ||||||||||||
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 | 33406 | 2420 | - | 2436 | = | -16 | * | (106 | / | 413) | = | -4.10653752 | ||
| 4 | 33409 | 2463 | - | 2485 | = | -22 | * | (97 | / | 413) | = | -5.16707022 | ||
| 5 | 33410 | 2525 | - | 2528 | = | -3 | * | (104 | / | 413) | = | -0.75544794 | ||
| 6 | 33413 | 2540 | - | 2552 | = | -12 | * | (106 | / | 413) | = | -3.07990314 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Dr. J. Michael McGrath Elementary | -13 | ||||||||||||
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 | 33579 | 2392 | - | 2436 | = | -44 | * | (95 | / | 418) | = | -9.99999999 | ||
| 4 | 33580 | 2458 | - | 2485 | = | -27 | * | (111 | / | 418) | = | -7.16985645 | ||
| 5 | 33581 | 2527 | - | 2528 | = | -1 | * | (94 | / | 418) | = | -0.22488038 | ||
| 6 | 33582 | 2540 | - | 2552 | = | -12 | * | (118 | / | 418) | = | -3.3875598 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Dr. J. Michael McGrath Elementary | -21 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -7 | -2 | -7 | -13 | -21 | -50.0 | -10.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 11.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.0
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 | 87% | 87% | 83% | 84% | 87% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Newhall 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.
Dr. J. Michael McGrath Elementary math proficiency
Zero+ meets standard.
79% less $meal
78% less $meal
74% less $meal
76% less $meal
79% 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.