De Anza High (Data source)
Source data for De Anza 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 | 231126 | 2487 | - | 2628 | = | -141 | * | (271 | / | 271) | = | -141.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for De Anza High | -141 |
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 | 6773 | 2504 | - | 2628 | = | -124 | * | (264 | / | 264) | = | -124.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for De Anza High | -124 |
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 | 6986 | 2498 | - | 2628 | = | -130 | * | (306 | / | 306) | = | -130.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for De Anza High | -130 |
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 | 7003 | 2520 | - | 2628 | = | -108 | * | (301 | / | 301) | = | -108.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for De Anza High | -108 |
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 | 7047 | 2505 | - | 2628 | = | -123 | * | (303 | / | 303) | = | -123.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for De Anza High | -123 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-141 | -124 | -130 | -108 | -123 | -626.0 | -125.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -92.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -158.2
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 | 70% | 68% | 68% | 70% | 72% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
West Contra Costa Unified school district County of Contra Costa
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
De Anza High math proficiency
Zero+ meets standard.
59% less $meal
58% less $meal
56% less $meal
58% less $meal
58% 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 West Contra Costa Unified (7)
De Anza High | El Cerrito High | Hercules High |
John F. Kennedy High | Middle College High | Pinole Valley High |
Richmond High |