Coolidge Elementary (Data source)
Source data for Coolidge 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 | 1193961 | 2470 | - | 2436 | = | 34 | * | (60 | / | 201) | = | 10.14925371 | ||
| 4 | 1193962 | 2495 | - | 2485 | = | 10 | * | (63 | / | 201) | = | 3.13432835 | ||
| 5 | 1193965 | 2521 | - | 2528 | = | -7 | * | (78 | / | 201) | = | -2.71641791 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Coolidge Elementary | 11 | ||||||||||||
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 | 37129 | 2437 | - | 2436 | = | 1 | * | (70 | / | 199) | = | 0.35175879 | ||
| 4 | 37131 | 2522 | - | 2485 | = | 37 | * | (60 | / | 199) | = | 11.15577887 | ||
| 5 | 37134 | 2506 | - | 2528 | = | -22 | * | (69 | / | 199) | = | -7.6281407 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Coolidge Elementary | 4 | ||||||||||||
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 | 37923 | 2463 | - | 2436 | = | 27 | * | (65 | / | 194) | = | 9.04639174 | ||
| 4 | 37925 | 2482 | - | 2485 | = | -3 | * | (67 | / | 194) | = | -1.03608247 | ||
| 5 | 37928 | 2560 | - | 2528 | = | 32 | * | (62 | / | 194) | = | 10.2268041 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Coolidge Elementary | 18 | ||||||||||||
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 | 37866 | 2440 | - | 2436 | = | 4 | * | (54 | / | 192) | = | 1.125 | ||
| 4 | 37868 | 2492 | - | 2485 | = | 7 | * | (73 | / | 192) | = | 2.66145833 | ||
| 5 | 37870 | 2509 | - | 2528 | = | -19 | * | (65 | / | 192) | = | -6.43229165 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Coolidge Elementary | -3 | ||||||||||||
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 | 38076 | 2496 | - | 2436 | = | 60 | * | (58 | / | 182) | = | 19.12087908 | ||
| 4 | 38077 | 2473 | - | 2485 | = | -12 | * | (54 | / | 182) | = | -3.56043955 | ||
| 5 | 38078 | 2521 | - | 2528 | = | -7 | * | (70 | / | 182) | = | -2.69230769 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Coolidge Elementary | 13 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 11 | 4 | 18 | -3 | 13 | 43.0 | 8.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 32.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -15.4
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 | 38% | 43% | 40% | 49% | 43% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Gabriel 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.
Coolidge Elementary math proficiency
Zero+ meets standard.
28% less $meal
34% less $meal
30% less $meal
42% less $meal
36% 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.
Elementary School (Public) schools in San Gabriel Unified (5)
| Coolidge Elementary | McKinley Elementary | Roosevelt Elementary |
| Washington Elementary | Wilson Elementary |