Schroeder Elementary (Data source)
Source data for Schroeder 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 | 1549597 | 2475 | - | 2436 | = | 39 | * | (95 | / | 335) | = | 11.05970147 | ||
| 4 | 1549598 | 2490 | - | 2485 | = | 5 | * | (88 | / | 335) | = | 1.31343284 | ||
| 5 | 1549601 | 2511 | - | 2528 | = | -17 | * | (90 | / | 335) | = | -4.56716417 | ||
| 6 | 1549602 | 2561 | - | 2552 | = | 9 | * | (62 | / | 335) | = | 1.66567163 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Schroeder Elementary | 9 | ||||||||||||
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 | 48559 | 2505 | - | 2436 | = | 69 | * | (83 | / | 358) | = | 15.99720668 | ||
| 4 | 48561 | 2516 | - | 2485 | = | 31 | * | (95 | / | 358) | = | 8.22625697 | ||
| 5 | 48563 | 2533 | - | 2528 | = | 5 | * | (96 | / | 358) | = | 1.34078212 | ||
| 6 | 48564 | 2567 | - | 2552 | = | 15 | * | (84 | / | 358) | = | 3.51955307 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Schroeder Elementary | 29 | ||||||||||||
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 | 49878 | 2480 | - | 2436 | = | 44 | * | (98 | / | 362) | = | 11.91160221 | ||
| 4 | 49881 | 2537 | - | 2485 | = | 52 | * | (83 | / | 362) | = | 11.92265188 | ||
| 5 | 49882 | 2540 | - | 2528 | = | 12 | * | (95 | / | 362) | = | 3.14917127 | ||
| 6 | 49884 | 2567 | - | 2552 | = | 15 | * | (86 | / | 362) | = | 3.5635359 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Schroeder Elementary | 31 | ||||||||||||
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 | 49895 | 2495 | - | 2436 | = | 59 | * | (89 | / | 294) | = | 17.86054419 | ||
| 4 | 49897 | 2491 | - | 2485 | = | 6 | * | (92 | / | 294) | = | 1.87755102 | ||
| 5 | 49899 | 2564 | - | 2528 | = | 36 | * | (81 | / | 294) | = | 9.91836734 | ||
| 6 | 49901 | 2578 | - | 2552 | = | 26 | * | (32 | / | 294) | = | 2.82993196 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Schroeder Elementary | 32 | ||||||||||||
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 | 50090 | 2506 | - | 2436 | = | 70 | * | (75 | / | 320) | = | 16.40625 | ||
| 4 | 50091 | 2527 | - | 2485 | = | 42 | * | (87 | / | 320) | = | 11.41875 | ||
| 5 | 50092 | 2534 | - | 2528 | = | 6 | * | (86 | / | 320) | = | 1.6125 | ||
| 6 | 50093 | 2599 | - | 2552 | = | 47 | * | (72 | / | 320) | = | 10.575 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Schroeder Elementary | 40 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 9 | 29 | 31 | 32 | 40 | 141.0 | 28.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 61.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -4.8
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 | 30% | 32% | 32% | 33% | 36% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Westminster school district | County of Orange
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.
Schroeder Elementary math proficiency
Zero+ meets standard.
26% less $meal
26% less $meal
26% less $meal
29% less $meal
34% 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.