Magnolia Elementary (Data source)
Source data for Magnolia 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 | 2121292 | 2374 | - | 2436 | = | -62 | * | (90 | / | 280) | = | -19.9285714 | ||
| 4 | 2121295 | 2413 | - | 2485 | = | -72 | * | (87 | / | 280) | = | -22.37142852 | ||
| 5 | 2121296 | 2474 | - | 2528 | = | -54 | * | (103 | / | 280) | = | -19.86428567 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Magnolia Elementary | -62 | ||||||||||||
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 | 65151 | 2362 | - | 2436 | = | -74 | * | (73 | / | 231) | = | -23.38528138 | ||
| 4 | 65153 | 2430 | - | 2485 | = | -55 | * | (85 | / | 231) | = | -20.23809519 | ||
| 5 | 65155 | 2470 | - | 2528 | = | -58 | * | (73 | / | 231) | = | -18.32900433 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Magnolia Elementary | -62 | ||||||||||||
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 | 66966 | 2353 | - | 2436 | = | -83 | * | (75 | / | 246) | = | -25.30487798 | ||
| 4 | 66968 | 2408 | - | 2485 | = | -77 | * | (83 | / | 246) | = | -25.97967472 | ||
| 5 | 66970 | 2457 | - | 2528 | = | -71 | * | (88 | / | 246) | = | -25.39837397 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Magnolia Elementary | -77 | ||||||||||||
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 | 67070 | 2369 | - | 2436 | = | -67 | * | (88 | / | 257) | = | -22.94163422 | ||
| 4 | 67073 | 2384 | - | 2485 | = | -101 | * | (84 | / | 257) | = | -33.01167315 | ||
| 5 | 67074 | 2441 | - | 2528 | = | -87 | * | (85 | / | 257) | = | -28.77431901 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Magnolia Elementary | -85 | ||||||||||||
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 | 67567 | 2347 | - | 2436 | = | -89 | * | (85 | / | 268) | = | -28.22761193 | ||
| 4 | 67568 | 2419 | - | 2485 | = | -66 | * | (95 | / | 268) | = | -23.39552233 | ||
| 5 | 67569 | 2420 | - | 2528 | = | -108 | * | (88 | / | 268) | = | -35.46268646 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Magnolia Elementary | -87 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -62 | -62 | -77 | -85 | -87 | -373.0 | -74.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -38.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.6
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% | 85% | 90% | 85% | 86% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Cajon Valley Union school district | County of San Diego
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.
Magnolia Elementary math proficiency
Zero+ meets standard.
72% less $meal
75% less $meal
82% less $meal
75% less $meal
77% 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.