Robert F. Kennedy Elementary (Data source)
Source data for Robert F. Kennedy 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 | 1163107 | 2367 | - | 2436 | = | -69 | * | (121 | / | 390) | = | -21.40769229 | ||
| 4 | 1163110 | 2396 | - | 2485 | = | -89 | * | (103 | / | 390) | = | -23.5051282 | ||
| 5 | 1163111 | 2426 | - | 2528 | = | -102 | * | (98 | / | 390) | = | -25.6307692 | ||
| 6 | 1163114 | 2448 | - | 2552 | = | -104 | * | (68 | / | 390) | = | -18.1333333 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Robert F. Kennedy Elementary | -89 | ||||||||||||
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 | 36196 | 2382 | - | 2436 | = | -54 | * | (116 | / | 422) | = | -14.84360186 | ||
| 4 | 36197 | 2391 | - | 2485 | = | -94 | * | (109 | / | 422) | = | -24.27962077 | ||
| 5 | 36199 | 2419 | - | 2528 | = | -109 | * | (100 | / | 422) | = | -25.82938382 | ||
| 6 | 36202 | 2444 | - | 2552 | = | -108 | * | (65 | / | 422) | = | -16.63507109 | ||
| 7 | 36203 | 2473 | - | 2567 | = | -94 | * | (32 | / | 422) | = | -7.127962 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Robert F. Kennedy Elementary | -89 | ||||||||||||
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 | 36947 | 2417 | - | 2436 | = | -19 | * | (108 | / | 435) | = | -4.71724138 | ||
| 4 | 36950 | 2425 | - | 2485 | = | -60 | * | (111 | / | 435) | = | -15.31034478 | ||
| 5 | 36951 | 2444 | - | 2528 | = | -84 | * | (97 | / | 435) | = | -18.73103442 | ||
| 6 | 36953 | 2472 | - | 2552 | = | -80 | * | (61 | / | 435) | = | -11.2183908 | ||
| 7 | 36956 | 2477 | - | 2567 | = | -90 | * | (41 | / | 435) | = | -8.48275857 | ||
| 8 | 36958 | 2480 | - | 2586 | = | -106 | * | (17 | / | 435) | = | -4.14252865 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Robert F. Kennedy Elementary | -63 | ||||||||||||
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 | 36913 | 2426 | - | 2436 | = | -10 | * | (74 | / | 379) | = | -1.95250659 | ||
| 4 | 36915 | 2434 | - | 2485 | = | -51 | * | (101 | / | 379) | = | -13.59102902 | ||
| 5 | 36917 | 2446 | - | 2528 | = | -82 | * | (105 | / | 379) | = | -22.71767803 | ||
| 6 | 36919 | 2469 | - | 2552 | = | -83 | * | (49 | / | 379) | = | -10.73087063 | ||
| 7 | 36921 | 2470 | - | 2567 | = | -97 | * | (34 | / | 379) | = | -8.70184691 | ||
| 8 | 36923 | 2474 | - | 2586 | = | -112 | * | (16 | / | 379) | = | -4.7282321 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Robert F. Kennedy Elementary | -62 | ||||||||||||
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 | 37109 | 2422 | - | 2436 | = | -14 | * | (95 | / | 420) | = | -3.16666666 | ||
| 4 | 37110 | 2447 | - | 2485 | = | -38 | * | (81 | / | 420) | = | -7.3285714 | ||
| 5 | 37111 | 2450 | - | 2528 | = | -78 | * | (100 | / | 420) | = | -18.57142856 | ||
| 6 | 37112 | 2469 | - | 2552 | = | -83 | * | (70 | / | 420) | = | -13.83333328 | ||
| 7 | 37113 | 2492 | - | 2567 | = | -75 | * | (40 | / | 420) | = | -7.14285713 | ||
| 8 | 37114 | 2536 | - | 2586 | = | -50 | * | (34 | / | 420) | = | -4.047619 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Robert F. Kennedy Elementary | -54 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -89 | -89 | -63 | -62 | -54 | -357.0 | -71.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -23.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -119.4
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 | 81% | 89% | 81% | 63% | 71% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Compton 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.
Robert F. Kennedy Elementary math proficiency
Zero+ meets standard.
77% less $meal
83% less $meal
76% less $meal
63% less $meal
69% 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.