Lake Forest Elementary (Data source)
Source data for Lake Forest 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 | 285070 | 2476 | - | 2436 | = | 40 | * | (82 | / | 229) | = | 14.32314408 | ||
| 4 | 285073 | 2518 | - | 2485 | = | 33 | * | (73 | / | 229) | = | 10.51965064 | ||
| 5 | 285074 | 2545 | - | 2528 | = | 17 | * | (74 | / | 229) | = | 5.49344977 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lake Forest Elementary | 30 | ||||||||||||
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 | 8449 | 2483 | - | 2436 | = | 47 | * | (89 | / | 249) | = | 16.79919675 | ||
| 4 | 8452 | 2522 | - | 2485 | = | 37 | * | (86 | / | 249) | = | 12.77911646 | ||
| 5 | 8453 | 2561 | - | 2528 | = | 33 | * | (74 | / | 249) | = | 9.80722892 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lake Forest Elementary | 39 | ||||||||||||
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 | 8745 | 2475 | - | 2436 | = | 39 | * | (65 | / | 259) | = | 9.78764475 | ||
| 4 | 8747 | 2517 | - | 2485 | = | 32 | * | (98 | / | 259) | = | 12.1081081 | ||
| 5 | 8750 | 2539 | - | 2528 | = | 11 | * | (96 | / | 259) | = | 4.07722007 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lake Forest Elementary | 26 | ||||||||||||
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 | 8765 | 2484 | - | 2436 | = | 48 | * | (66 | / | 226) | = | 14.0176991 | ||
| 4 | 8768 | 2513 | - | 2485 | = | 28 | * | (62 | / | 226) | = | 7.68141592 | ||
| 5 | 8769 | 2539 | - | 2528 | = | 11 | * | (98 | / | 226) | = | 4.7699115 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lake Forest Elementary | 26 | ||||||||||||
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 | 8823 | 2486 | - | 2436 | = | 50 | * | (68 | / | 206) | = | 16.50485435 | ||
| 4 | 8824 | 2530 | - | 2485 | = | 45 | * | (70 | / | 206) | = | 15.29126213 | ||
| 5 | 8825 | 2539 | - | 2528 | = | 11 | * | (68 | / | 206) | = | 3.63106796 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lake Forest Elementary | 35 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 30 | 39 | 26 | 26 | 35 | 156.0 | 31.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 46.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 16.2
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 | 7% | 7% | 6% | 11% | 9% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rescue Union Elementary school district | County of El Dorado
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.
Lake Forest Elementary math proficiency
Zero+ meets standard.
6% less $meal
6% less $meal
4% less $meal
10% less $meal
8% 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 Rescue Union Elementary (5)
| Green Valley Elementary | Jackson Elementary | Lake Forest Elementary |
| Lakeview Elementary | Rescue Elementary |