Castle Rock Elementary (Data source)
Source data for Castle Rock 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 | 1189156 | 2472 | - | 2436 | = | 36 | * | (110 | / | 305) | = | 12.98360653 | ||
| 4 | 1189157 | 2525 | - | 2485 | = | 40 | * | (104 | / | 305) | = | 13.63934424 | ||
| 5 | 1189160 | 2566 | - | 2528 | = | 38 | * | (91 | / | 305) | = | 11.33770489 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Castle Rock Elementary | 38 | ||||||||||||
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 | 37002 | 2489 | - | 2436 | = | 53 | * | (111 | / | 321) | = | 18.32710278 | ||
| 4 | 37003 | 2536 | - | 2485 | = | 51 | * | (105 | / | 321) | = | 16.68224295 | ||
| 5 | 37006 | 2576 | - | 2528 | = | 48 | * | (105 | / | 321) | = | 15.70093454 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Castle Rock Elementary | 51 | ||||||||||||
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 | 37789 | 2485 | - | 2436 | = | 49 | * | (112 | / | 337) | = | 16.28486644 | ||
| 4 | 37792 | 2519 | - | 2485 | = | 34 | * | (113 | / | 337) | = | 11.40059345 | ||
| 5 | 37793 | 2569 | - | 2528 | = | 41 | * | (112 | / | 337) | = | 13.62611273 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Castle Rock Elementary | 41 | ||||||||||||
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 | 37728 | 2477 | - | 2436 | = | 41 | * | (104 | / | 321) | = | 13.28348906 | ||
| 4 | 37730 | 2533 | - | 2485 | = | 48 | * | (106 | / | 321) | = | 15.85046726 | ||
| 5 | 37732 | 2560 | - | 2528 | = | 32 | * | (111 | / | 321) | = | 11.06542054 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Castle Rock Elementary | 40 | ||||||||||||
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 | 37938 | 2481 | - | 2436 | = | 45 | * | (114 | / | 330) | = | 15.54545453 | ||
| 4 | 37939 | 2519 | - | 2485 | = | 34 | * | (108 | / | 330) | = | 11.12727272 | ||
| 5 | 37940 | 2578 | - | 2528 | = | 50 | * | (108 | / | 330) | = | 16.36363635 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Castle Rock Elementary | 43 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 38 | 51 | 41 | 40 | 43 | 213.0 | 42.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 57.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 27.6
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 | 8% | 9% | 10% | 21% | 22% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Walnut Valley 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.
Castle Rock Elementary math proficiency
Zero+ meets standard.
4% less $meal
6% less $meal
8% less $meal
19% less $meal
21% 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.