Chaparral Elementary (Data source)
Source data for Chaparral 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 | 747797 | 2471 | - | 2436 | = | 35 | * | (94 | / | 312) | = | 10.54487179 | ||
| 4 | 747798 | 2503 | - | 2485 | = | 18 | * | (112 | / | 312) | = | 6.46153844 | ||
| 5 | 747801 | 2517 | - | 2528 | = | -11 | * | (106 | / | 312) | = | -3.73717948 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Chaparral Elementary | 13 | ||||||||||||
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 | 23515 | 2465 | - | 2436 | = | 29 | * | (117 | / | 336) | = | 10.09821427 | ||
| 4 | 23517 | 2515 | - | 2485 | = | 30 | * | (100 | / | 336) | = | 8.92857141 | ||
| 5 | 23518 | 2557 | - | 2528 | = | 29 | * | (119 | / | 336) | = | 10.27083331 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Chaparral Elementary | 29 | ||||||||||||
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 | 23987 | 2478 | - | 2436 | = | 42 | * | (93 | / | 313) | = | 12.4792332 | ||
| 4 | 23989 | 2505 | - | 2485 | = | 20 | * | (121 | / | 313) | = | 7.73162938 | ||
| 5 | 23992 | 2540 | - | 2528 | = | 12 | * | (99 | / | 313) | = | 3.79552715 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Chaparral Elementary | 24 | ||||||||||||
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 | 24007 | 2489 | - | 2436 | = | 53 | * | (86 | / | 308) | = | 14.79870129 | ||
| 4 | 24009 | 2512 | - | 2485 | = | 27 | * | (95 | / | 308) | = | 8.32792207 | ||
| 5 | 24011 | 2531 | - | 2528 | = | 3 | * | (127 | / | 308) | = | 1.23701299 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Chaparral Elementary | 24 | ||||||||||||
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 | 24182 | 2478 | - | 2436 | = | 42 | * | (101 | / | 294) | = | 14.42857139 | ||
| 4 | 24183 | 2533 | - | 2485 | = | 48 | * | (94 | / | 294) | = | 15.34693877 | ||
| 5 | 24184 | 2539 | - | 2528 | = | 11 | * | (99 | / | 294) | = | 3.70408162 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Chaparral Elementary | 33 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 13 | 29 | 24 | 24 | 33 | 123.0 | 24.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 45.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 3.6
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 | 10% | 10% | 8% | 13% | 10% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Las Virgenes 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.
Chaparral Elementary math proficiency
Zero+ meets standard.
7% less $meal
6% less $meal
6% less $meal
11% less $meal
9% 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 Las Virgenes Unified (8)
| Bay Laurel Elementary | Chaparral Elementary | Lupin Hill Elementary |
| Round Meadow Elementary | Sumac Elementary | White Oak Elementary |
| Willow Elementary | Yerba Buena Elementary |