Gridley High (Data source)
Source data for Gridley 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 |
||
6 | 158943 | 0 | - | 2552 | = | * | (0 | / | 158) | = | ||||
11 | 158944 | 2571 | - | 2628 | = | -57 | * | (158 | / | 158) | = | -57.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Gridley High | -57 |
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 | 4700 | 2591 | - | 2628 | = | -37 | * | (134 | / | 134) | = | -37.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Gridley High | -37 |
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 |
||
7 | 4798 | 0 | - | 2567 | = | * | (0 | / | 122) | = | ||||
11 | 4800 | 2592 | - | 2628 | = | -36 | * | (122 | / | 122) | = | -36.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Gridley High | -36 |
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 | 4785 | 2592 | - | 2628 | = | -36 | * | (157 | / | 157) | = | -36.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Gridley High | -36 |
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 | 4815 | 2558 | - | 2628 | = | -70 | * | (146 | / | 146) | = | -70.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Gridley High | -70 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-57 | -37 | -36 | -36 | -70 | -236.0 | -47.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -2.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -92.2
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% | 52% | 21% | 66% | 69% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Gridley Unified school district County of Butte
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.
Gridley High math proficiency
Zero+ meets standard.
![](/assets/house_drawing_5in-c6442fed32af63d603d8b366066112e716dad0472d326bacc949d19f4beb6f9b.png)
62% less $meal
![](/assets/house_drawing_5in-c6442fed32af63d603d8b366066112e716dad0472d326bacc949d19f4beb6f9b.png)
46% less $meal
![](/assets/house_drawing_5in-c6442fed32af63d603d8b366066112e716dad0472d326bacc949d19f4beb6f9b.png)
21% less $meal
![](/assets/house_drawing_5in-c6442fed32af63d603d8b366066112e716dad0472d326bacc949d19f4beb6f9b.png)
61% less $meal
![](/assets/house_drawing_5in-c6442fed32af63d603d8b366066112e716dad0472d326bacc949d19f4beb6f9b.png)
61% 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 Gridley Unified (1)
Gridley High |