Janie P. Abbott Elementary (Data source)
Source data for Janie P. Abbott 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 | 1026300 | 2418 | - | 2436 | = | -18 | * | (111 | / | 410) | = | -4.87317073 | ||
| 4 | 1026301 | 2422 | - | 2485 | = | -63 | * | (114 | / | 410) | = | -17.51707314 | ||
| 5 | 1026304 | 2434 | - | 2528 | = | -94 | * | (107 | / | 410) | = | -24.53170725 | ||
| 6 | 1026305 | 2500 | - | 2552 | = | -52 | * | (78 | / | 410) | = | -9.8926829 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Janie P. Abbott Elementary | -57 | ||||||||||||
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 | 32221 | 2418 | - | 2436 | = | -18 | * | (98 | / | 412) | = | -4.28155339 | ||
| 4 | 32222 | 2442 | - | 2485 | = | -43 | * | (104 | / | 412) | = | -10.85436891 | ||
| 5 | 32225 | 2468 | - | 2528 | = | -60 | * | (107 | / | 412) | = | -15.58252422 | ||
| 6 | 32227 | 2468 | - | 2552 | = | -84 | * | (103 | / | 412) | = | -21.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Janie P. Abbott Elementary | -52 | ||||||||||||
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 | 32773 | 2426 | - | 2436 | = | -10 | * | (93 | / | 399) | = | -2.33082706 | ||
| 4 | 32774 | 2438 | - | 2485 | = | -47 | * | (94 | / | 399) | = | -11.07268168 | ||
| 5 | 32776 | 2485 | - | 2528 | = | -43 | * | (105 | / | 399) | = | -11.31578944 | ||
| 6 | 32779 | 2511 | - | 2552 | = | -41 | * | (107 | / | 399) | = | -10.99498747 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Janie P. Abbott Elementary | -36 | ||||||||||||
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 | 32788 | 2445 | - | 2436 | = | 9 | * | (89 | / | 380) | = | 2.10789473 | ||
| 4 | 32790 | 2449 | - | 2485 | = | -36 | * | (88 | / | 380) | = | -8.33684209 | ||
| 5 | 32792 | 2481 | - | 2528 | = | -47 | * | (99 | / | 380) | = | -12.24473681 | ||
| 6 | 32794 | 2524 | - | 2552 | = | -28 | * | (104 | / | 380) | = | -7.66315788 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Janie P. Abbott Elementary | -26 | ||||||||||||
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 | 32963 | 2452 | - | 2436 | = | 16 | * | (94 | / | 353) | = | 4.26062322 | ||
| 4 | 32964 | 2459 | - | 2485 | = | -26 | * | (81 | / | 353) | = | -5.96600566 | ||
| 5 | 32965 | 2497 | - | 2528 | = | -31 | * | (85 | / | 353) | = | -7.46458923 | ||
| 6 | 32966 | 2502 | - | 2552 | = | -50 | * | (93 | / | 353) | = | -13.1728045 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Janie P. Abbott Elementary | -22 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -57 | -52 | -36 | -26 | -22 | -193.0 | -38.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 6.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.6
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 | 98% | 92% | 92% | 92% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lynwood 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.
Janie P. Abbott Elementary math proficiency
Zero+ meets standard.
87% less $meal
83% less $meal
85% less $meal
83% less $meal
83% 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.