Rosecrans Elementary (Data source)
Source data for Rosecrans 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 | 1164429 | 2400 | - | 2436 | = | -36 | * | (97 | / | 269) | = | -12.98141262 | ||
| 4 | 1164432 | 2433 | - | 2485 | = | -52 | * | (86 | / | 269) | = | -16.6245353 | ||
| 5 | 1164433 | 2445 | - | 2528 | = | -83 | * | (86 | / | 269) | = | -26.53531597 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rosecrans Elementary | -56 | ||||||||||||
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 | 36249 | 2431 | - | 2436 | = | -5 | * | (75 | / | 238) | = | -1.57563025 | ||
| 4 | 36251 | 2458 | - | 2485 | = | -27 | * | (85 | / | 238) | = | -9.64285714 | ||
| 5 | 36254 | 2445 | - | 2528 | = | -83 | * | (78 | / | 238) | = | -27.20168064 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rosecrans Elementary | -38 | ||||||||||||
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 | 37007 | 2431 | - | 2436 | = | -5 | * | (99 | / | 261) | = | -1.89655172 | ||
| 4 | 37010 | 2435 | - | 2485 | = | -50 | * | (75 | / | 261) | = | -14.36781605 | ||
| 5 | 37012 | 2451 | - | 2528 | = | -77 | * | (87 | / | 261) | = | -25.66666664 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rosecrans Elementary | -42 | ||||||||||||
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 | 36976 | 2416 | - | 2436 | = | -20 | * | (86 | / | 276) | = | -6.23188404 | ||
| 4 | 36978 | 2449 | - | 2485 | = | -36 | * | (89 | / | 276) | = | -11.60869565 | ||
| 5 | 36980 | 2458 | - | 2528 | = | -70 | * | (68 | / | 276) | = | -17.24637677 | ||
| 6 | 36982 | 2502 | - | 2552 | = | -50 | * | (33 | / | 276) | = | -5.97826085 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rosecrans Elementary | -41 | ||||||||||||
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 | 37172 | 2433 | - | 2436 | = | -3 | * | (80 | / | 320) | = | -0.75 | ||
| 4 | 37173 | 2453 | - | 2485 | = | -32 | * | (82 | / | 320) | = | -8.2 | ||
| 5 | 37174 | 2472 | - | 2528 | = | -56 | * | (93 | / | 320) | = | -16.275 | ||
| 6 | 37175 | 2477 | - | 2552 | = | -75 | * | (38 | / | 320) | = | -8.90625 | ||
| 7 | 37176 | 2523 | - | 2567 | = | -44 | * | (27 | / | 320) | = | -3.7125 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rosecrans Elementary | -38 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -56 | -38 | -42 | -41 | -38 | -215.0 | -43.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -22.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.0
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 | 58% | 83% | 77% | 81% | 79% |
| 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.
Rosecrans Elementary math proficiency
Zero+ meets standard.
57% less $meal
78% less $meal
74% less $meal
78% less $meal
76% 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.