Willow Elementary (Data source)
Source data for Willow 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 | 2292738 | 2397 | - | 2436 | = | -39 | * | (101 | / | 687) | = | -5.73362443 | ||
| 4 | 2292739 | 2418 | - | 2485 | = | -67 | * | (116 | / | 687) | = | -11.31295482 | ||
| 5 | 2292742 | 2444 | - | 2528 | = | -84 | * | (125 | / | 687) | = | -15.28384276 | ||
| 6 | 2292743 | 2459 | - | 2552 | = | -93 | * | (121 | / | 687) | = | -16.37991265 | ||
| 7 | 2292746 | 2468 | - | 2567 | = | -99 | * | (96 | / | 687) | = | -13.83406111 | ||
| 8 | 2292747 | 2498 | - | 2586 | = | -88 | * | (128 | / | 687) | = | -16.39592425 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Willow Elementary | -79 | ||||||||||||
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 | 70213 | 2380 | - | 2436 | = | -56 | * | (136 | / | 758) | = | -10.0474934 | ||
| 4 | 70215 | 2425 | - | 2485 | = | -60 | * | (123 | / | 758) | = | -9.73614774 | ||
| 5 | 70218 | 2437 | - | 2528 | = | -91 | * | (145 | / | 758) | = | -17.40765163 | ||
| 6 | 70219 | 2461 | - | 2552 | = | -91 | * | (141 | / | 758) | = | -16.92744062 | ||
| 7 | 70222 | 2484 | - | 2567 | = | -83 | * | (115 | / | 758) | = | -12.59234824 | ||
| 8 | 70223 | 2484 | - | 2586 | = | -102 | * | (98 | / | 758) | = | -13.187335 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Willow Elementary | -80 | ||||||||||||
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 | 72063 | 2379 | - | 2436 | = | -57 | * | (106 | / | 710) | = | -8.50985912 | ||
| 4 | 72065 | 2417 | - | 2485 | = | -68 | * | (130 | / | 710) | = | -12.45070419 | ||
| 5 | 72067 | 2451 | - | 2528 | = | -77 | * | (121 | / | 710) | = | -13.1225352 | ||
| 6 | 72069 | 2445 | - | 2552 | = | -107 | * | (132 | / | 710) | = | -19.89295764 | ||
| 7 | 72071 | 2473 | - | 2567 | = | -94 | * | (110 | / | 710) | = | -14.56338024 | ||
| 8 | 72073 | 2504 | - | 2586 | = | -82 | * | (111 | / | 710) | = | -12.8197183 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Willow Elementary | -81 | ||||||||||||
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 | 72201 | 2406 | - | 2436 | = | -30 | * | (106 | / | 468) | = | -6.79487178 | ||
| 4 | 72204 | 2431 | - | 2485 | = | -54 | * | (117 | / | 468) | = | -13.5 | ||
| 5 | 72205 | 2482 | - | 2528 | = | -46 | * | (124 | / | 468) | = | -12.18803414 | ||
| 6 | 72208 | 2471 | - | 2552 | = | -81 | * | (121 | / | 468) | = | -20.94230765 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Willow Elementary | -53 | ||||||||||||
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 | 72694 | 2409 | - | 2436 | = | -27 | * | (123 | / | 472) | = | -7.03601694 | ||
| 4 | 72695 | 2464 | - | 2485 | = | -21 | * | (104 | / | 472) | = | -4.62711864 | ||
| 5 | 72696 | 2475 | - | 2528 | = | -53 | * | (117 | / | 472) | = | -13.13771182 | ||
| 6 | 72697 | 2485 | - | 2552 | = | -67 | * | (128 | / | 472) | = | -18.16949148 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Willow Elementary | -43 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -79 | -80 | -81 | -53 | -43 | -336.0 | -67.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -16.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -118.2
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 | 88% | 99% | 89% | 72% | 86% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Ysidro Elementary 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.
Willow Elementary math proficiency
Zero+ meets standard.
81% less $meal
99% less $meal
89% less $meal
70% less $meal
78% 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.
Elementary School (Public) schools in San Ysidro Elementary (5)
| La Mirada Elementary | Ocean View Hills | Smythe Elementary |
| Sunset Elementary | Willow Elementary |