West Ranch High (Data source)
Source data for West Ranch High
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 |
||
| 11 | 1154268 | 2662 | - | 2628 | = | 34 | * | (565 | / | 565) | = | 34.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for West Ranch High | 34 | ||||||||||||
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 |
||
| 11 | 35908 | 2661 | - | 2628 | = | 33 | * | (569 | / | 569) | = | 33.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for West Ranch High | 33 | ||||||||||||
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 |
||
| 11 | 36616 | 2657 | - | 2628 | = | 29 | * | (556 | / | 556) | = | 29.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for West Ranch High | 29 | ||||||||||||
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 |
||
| 11 | 36601 | 2654 | - | 2628 | = | 26 | * | (634 | / | 634) | = | 26.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for West Ranch High | 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 |
||
| 11 | 36762 | 2676 | - | 2628 | = | 48 | * | (520 | / | 520) | = | 48.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for West Ranch High | 48 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 34 | 33 | 29 | 26 | 48 | 170.0 | 34.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 58.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 10.0
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 | 10% | 8% | 9% | 16% | 15% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
William S. Hart Union High 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.
West Ranch High math proficiency
Zero+ meets standard.
7% less $meal
7% less $meal
6% less $meal
14% less $meal
13% 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.
High Schools (Public) schools in William S. Hart Union High (9)
| Academy of the Canyons | Canyon High | Castaic High |
| Golden Valley High | Saugus High | Sequoia School |
| Valencia High | West Ranch High | William S. Hart High |