Garfield Elementary (Data source)
Source data for Garfield 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 | 1035717 | 2365 | - | 2436 | = | -71 | * | (149 | / | 389) | = | -27.19537275 | ||
| 4 | 1035718 | 2406 | - | 2485 | = | -79 | * | (115 | / | 389) | = | -23.35475578 | ||
| 5 | 1035721 | 2451 | - | 2528 | = | -77 | * | (125 | / | 389) | = | -24.74293052 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Garfield Elementary | -75 | ||||||||||||
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 | 32516 | 2382 | - | 2436 | = | -54 | * | (131 | / | 386) | = | -18.32642485 | ||
| 4 | 32519 | 2406 | - | 2485 | = | -79 | * | (147 | / | 386) | = | -30.08549219 | ||
| 5 | 32520 | 2428 | - | 2528 | = | -100 | * | (108 | / | 386) | = | -27.9792746 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Garfield Elementary | -76 | ||||||||||||
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 | 33088 | 2402 | - | 2436 | = | -34 | * | (105 | / | 378) | = | -9.44444442 | ||
| 4 | 33091 | 2408 | - | 2485 | = | -77 | * | (128 | / | 378) | = | -26.07407403 | ||
| 5 | 33093 | 2443 | - | 2528 | = | -85 | * | (145 | / | 378) | = | -32.60582006 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Garfield Elementary | -68 | ||||||||||||
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 | 33107 | 2385 | - | 2436 | = | -51 | * | (109 | / | 346) | = | -16.06647395 | ||
| 4 | 33108 | 2432 | - | 2485 | = | -53 | * | (106 | / | 346) | = | -16.23699419 | ||
| 5 | 33111 | 2461 | - | 2528 | = | -67 | * | (131 | / | 346) | = | -25.36705197 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Garfield Elementary | -58 | ||||||||||||
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 | 33282 | 2401 | - | 2436 | = | -35 | * | (104 | / | 320) | = | -11.375 | ||
| 4 | 33283 | 2439 | - | 2485 | = | -46 | * | (105 | / | 320) | = | -15.09375 | ||
| 5 | 33284 | 2452 | - | 2528 | = | -76 | * | (111 | / | 320) | = | -26.3625 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Garfield Elementary | -53 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -75 | -76 | -68 | -58 | -53 | -330.0 | -66.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -36.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -96.0
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 | 88% | 84% | 78% | 80% | 81% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Montebello 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.
Garfield Elementary math proficiency
Zero+ meets standard.
80% less $meal
77% less $meal
73% less $meal
77% 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.