Worthington Elementary (Data source)
Source data for Worthington 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 | 728565 | 2366 | - | 2436 | = | -70 | * | (81 | / | 242) | = | -23.42975201 | ||
| 4 | 728566 | 2423 | - | 2485 | = | -62 | * | (85 | / | 242) | = | -21.77685948 | ||
| 5 | 728569 | 2459 | - | 2528 | = | -69 | * | (76 | / | 242) | = | -21.66942143 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Worthington Elementary | -67 | ||||||||||||
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 | 22948 | 2370 | - | 2436 | = | -66 | * | (76 | / | 230) | = | -21.80869561 | ||
| 4 | 22950 | 2417 | - | 2485 | = | -68 | * | (76 | / | 230) | = | -22.46956518 | ||
| 5 | 22953 | 2440 | - | 2528 | = | -88 | * | (78 | / | 230) | = | -29.84347819 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Worthington Elementary | -74 | ||||||||||||
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 | 23400 | 2371 | - | 2436 | = | -65 | * | (73 | / | 221) | = | -21.47058823 | ||
| 4 | 23402 | 2434 | - | 2485 | = | -51 | * | (75 | / | 221) | = | -17.30769227 | ||
| 5 | 23403 | 2435 | - | 2528 | = | -93 | * | (73 | / | 221) | = | -30.71945701 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Worthington Elementary | -69 | ||||||||||||
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 | 23408 | 2364 | - | 2436 | = | -72 | * | (65 | / | 201) | = | -23.28358205 | ||
| 4 | 23410 | 2421 | - | 2485 | = | -64 | * | (65 | / | 201) | = | -20.69651738 | ||
| 5 | 23412 | 2453 | - | 2528 | = | -75 | * | (71 | / | 201) | = | -26.49253725 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Worthington Elementary | -70 | ||||||||||||
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 | 23582 | 2373 | - | 2436 | = | -63 | * | (57 | / | 194) | = | -18.51030922 | ||
| 4 | 23583 | 2411 | - | 2485 | = | -74 | * | (73 | / | 194) | = | -27.84536077 | ||
| 5 | 23584 | 2456 | - | 2528 | = | -72 | * | (64 | / | 194) | = | -23.7525773 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Worthington Elementary | -70 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -67 | -74 | -69 | -70 | -70 | -350.0 | -70.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -64.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -76.0
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 | 81% | 74% | 94% | 94% | 95% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Inglewood 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.
Worthington Elementary math proficiency
Zero+ meets standard.
75% less $meal
68% less $meal
82% less $meal
86% less $meal
86% 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.