Gallatin Elementary (Data source)
Source data for Gallatin 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 | 675141 | 2444 | - | 2436 | = | 8 | * | (91 | / | 361) | = | 2.0166205 | ||
| 4 | 675144 | 2458 | - | 2485 | = | -27 | * | (139 | / | 361) | = | -10.39612188 | ||
| 5 | 675145 | 2493 | - | 2528 | = | -35 | * | (131 | / | 361) | = | -12.70083101 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Gallatin Elementary | -21 | ||||||||||||
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 | 21366 | 2459 | - | 2436 | = | 23 | * | (112 | / | 354) | = | 7.27683614 | ||
| 4 | 21368 | 2483 | - | 2485 | = | -2 | * | (104 | / | 354) | = | -0.58757062 | ||
| 5 | 21370 | 2501 | - | 2528 | = | -27 | * | (138 | / | 354) | = | -10.52542372 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Gallatin Elementary | -4 | ||||||||||||
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 | 21773 | 2440 | - | 2436 | = | 4 | * | (119 | / | 346) | = | 1.37572254 | ||
| 4 | 21775 | 2485 | - | 2485 | = | 0 | * | (121 | / | 346) | = | 0.0 | ||
| 5 | 21778 | 2512 | - | 2528 | = | -16 | * | (106 | / | 346) | = | -4.9017341 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Gallatin Elementary | -4 | ||||||||||||
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 | 21748 | 2455 | - | 2436 | = | 19 | * | (119 | / | 380) | = | 5.94999999 | ||
| 4 | 21750 | 2490 | - | 2485 | = | 5 | * | (128 | / | 380) | = | 1.68421053 | ||
| 5 | 21752 | 2510 | - | 2528 | = | -18 | * | (133 | / | 380) | = | -6.3 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Gallatin Elementary | 1 | ||||||||||||
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 | 21918 | 2452 | - | 2436 | = | 16 | * | (121 | / | 383) | = | 5.05483027 | ||
| 4 | 21919 | 2499 | - | 2485 | = | 14 | * | (127 | / | 383) | = | 4.64229765 | ||
| 5 | 21920 | 2537 | - | 2528 | = | 9 | * | (135 | / | 383) | = | 3.17232375 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Gallatin Elementary | 13 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -21 | -4 | -4 | 1 | 13 | -15.0 | -3.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 33.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -39.0
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 | 55% | 54% | 53% | 56% | 59% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Downey 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.
Gallatin Elementary math proficiency
Zero+ meets standard.
41% less $meal
38% less $meal
41% less $meal
47% less $meal
47% 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.