John Marshall Elementary (Data source)
Source data for John Marshall 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 | 711040 | 2422 | - | 2436 | = | -14 | * | (83 | / | 266) | = | -4.36842105 | ||
| 4 | 711041 | 2448 | - | 2485 | = | -37 | * | (95 | / | 266) | = | -13.21428571 | ||
| 5 | 711044 | 2465 | - | 2528 | = | -63 | * | (88 | / | 266) | = | -20.84210522 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for John Marshall Elementary | -38 | ||||||||||||
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 | 22447 | 2427 | - | 2436 | = | -9 | * | (55 | / | 229) | = | -2.16157205 | ||
| 4 | 22449 | 2464 | - | 2485 | = | -21 | * | (81 | / | 229) | = | -7.42794759 | ||
| 5 | 22451 | 2478 | - | 2528 | = | -50 | * | (93 | / | 229) | = | -20.30567685 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for John Marshall Elementary | -30 | ||||||||||||
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 | 22877 | 2394 | - | 2436 | = | -42 | * | (81 | / | 220) | = | -15.46363636 | ||
| 4 | 22880 | 2460 | - | 2485 | = | -25 | * | (59 | / | 220) | = | -6.70454545 | ||
| 5 | 22881 | 2494 | - | 2528 | = | -34 | * | (80 | / | 220) | = | -12.36363634 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for John Marshall Elementary | -35 | ||||||||||||
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 | 22874 | 2436 | - | 2436 | = | 0 | * | (70 | / | 210) | = | 0.0 | ||
| 4 | 22876 | 2458 | - | 2485 | = | -27 | * | (74 | / | 210) | = | -9.5142857 | ||
| 5 | 22878 | 2489 | - | 2528 | = | -39 | * | (66 | / | 210) | = | -12.25714285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for John Marshall Elementary | -22 | ||||||||||||
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 | 23056 | 2423 | - | 2436 | = | -13 | * | (75 | / | 218) | = | -4.47247706 | ||
| 4 | 23057 | 2475 | - | 2485 | = | -10 | * | (71 | / | 218) | = | -3.25688073 | ||
| 5 | 23058 | 2485 | - | 2528 | = | -43 | * | (72 | / | 218) | = | -14.20183485 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for John Marshall Elementary | -22 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -38 | -30 | -35 | -22 | -22 | -147.0 | -29.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -8.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -50.4
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 | 85% | 83% | 81% | 81% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Glendale 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.
John Marshall Elementary math proficiency
Zero+ meets standard.
72% less $meal
70% less $meal
71% less $meal
69% less $meal
74% 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.