Rogers Middle (Data source)
Source data for Rogers Middle
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 |
||
| 6 | 780905 | 2546 | - | 2552 | = | -6 | * | (300 | / | 882) | = | -2.04081632 | ||
| 7 | 780906 | 2569 | - | 2567 | = | 2 | * | (295 | / | 882) | = | 0.66893424 | ||
| 8 | 780908 | 2572 | - | 2586 | = | -14 | * | (287 | / | 882) | = | -4.55555555 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rogers Middle | -6 | ||||||||||||
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 |
||
| 6 | 24451 | 2568 | - | 2552 | = | 16 | * | (288 | / | 866) | = | 5.32101616 | ||
| 7 | 24453 | 2582 | - | 2567 | = | 15 | * | (291 | / | 866) | = | 5.0404157 | ||
| 8 | 24454 | 2616 | - | 2586 | = | 30 | * | (287 | / | 866) | = | 9.94226325 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rogers Middle | 20 | ||||||||||||
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 |
||
| 6 | 24951 | 2562 | - | 2552 | = | 10 | * | (283 | / | 852) | = | 3.32159624 | ||
| 7 | 24953 | 2588 | - | 2567 | = | 21 | * | (285 | / | 852) | = | 7.02464788 | ||
| 8 | 24955 | 2616 | - | 2586 | = | 30 | * | (284 | / | 852) | = | 9.99999999 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rogers Middle | 20 | ||||||||||||
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 |
||
| 6 | 24975 | 2583 | - | 2552 | = | 31 | * | (292 | / | 853) | = | 10.61195779 | ||
| 7 | 24977 | 2577 | - | 2567 | = | 10 | * | (279 | / | 853) | = | 3.2708089 | ||
| 8 | 24979 | 2616 | - | 2586 | = | 30 | * | (282 | / | 853) | = | 9.91793667 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rogers Middle | 24 | ||||||||||||
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 |
||
| 6 | 25144 | 2590 | - | 2552 | = | 38 | * | (288 | / | 850) | = | 12.8752941 | ||
| 7 | 25145 | 2614 | - | 2567 | = | 47 | * | (277 | / | 850) | = | 15.31647054 | ||
| 8 | 25146 | 2606 | - | 2586 | = | 20 | * | (285 | / | 850) | = | 6.70588234 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rogers Middle | 35 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -6 | 20 | 20 | 24 | 35 | 93.0 | 18.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 63.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -26.4
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 | 22% | 22% | 24% | 24% | 28% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Long Beach 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.
Rogers Middle math proficiency
Zero+ meets standard.
17% less $meal
17% less $meal
20% less $meal
19% less $meal
25% 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.