Carleton P. Lightfoot Elementary (Data source)
Source data for Carleton P. Lightfoot 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 | 1979753 | 2439 | - | 2436 | = | 3 | * | (107 | / | 329) | = | 0.97568389 | ||
| 4 | 1979754 | 2484 | - | 2485 | = | -1 | * | (103 | / | 329) | = | -0.31306991 | ||
| 5 | 1979757 | 2530 | - | 2528 | = | 2 | * | (119 | / | 329) | = | 0.72340425 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Carleton P. Lightfoot Elementary | 1 | ||||||||||||
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 | 60915 | 2454 | - | 2436 | = | 18 | * | (102 | / | 315) | = | 5.82857141 | ||
| 4 | 60916 | 2499 | - | 2485 | = | 14 | * | (110 | / | 315) | = | 4.88888889 | ||
| 5 | 60918 | 2504 | - | 2528 | = | -24 | * | (103 | / | 315) | = | -7.84761902 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Carleton P. Lightfoot Elementary | 3 | ||||||||||||
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 | 62676 | 2482 | - | 2436 | = | 46 | * | (97 | / | 321) | = | 13.90031151 | ||
| 4 | 62678 | 2513 | - | 2485 | = | 28 | * | (103 | / | 321) | = | 8.98442367 | ||
| 5 | 62681 | 2517 | - | 2528 | = | -11 | * | (121 | / | 321) | = | -4.14641744 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Carleton P. Lightfoot Elementary | 19 | ||||||||||||
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 | 62755 | 2491 | - | 2436 | = | 55 | * | (86 | / | 284) | = | 16.65492956 | ||
| 4 | 62757 | 2518 | - | 2485 | = | 33 | * | (95 | / | 284) | = | 11.03873239 | ||
| 5 | 62759 | 2549 | - | 2528 | = | 21 | * | (103 | / | 284) | = | 7.61619718 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Carleton P. Lightfoot Elementary | 35 | ||||||||||||
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 | 63023 | 2519 | - | 2436 | = | 83 | * | (82 | / | 266) | = | 25.58646611 | ||
| 4 | 63024 | 2537 | - | 2485 | = | 52 | * | (89 | / | 266) | = | 17.39849623 | ||
| 5 | 63025 | 2564 | - | 2528 | = | 36 | * | (95 | / | 266) | = | 12.85714285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Carleton P. Lightfoot Elementary | 56 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 1 | 3 | 19 | 35 | 56 | 114.0 | 22.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 91.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -46.2
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 | 31% | 31% | 32% | 40% | 40% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Etiwanda Elementary school district | County of San Bernardino
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.
Carleton P. Lightfoot Elementary math proficiency
Zero+ meets standard.
26% less $meal
29% less $meal
29% less $meal
38% less $meal
37% 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.