Arroyo Grande High (Data source)
Source data for Arroyo Grande 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 |
||
8 | 2485351 | 0 | - | 2586 | = | * | (0 | / | 495) | = | ||||
11 | 2485354 | 2520 | - | 2628 | = | -108 | * | (495 | / | 495) | = | -108.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Arroyo Grande High | -108 |
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 | 75771 | 2578 | - | 2628 | = | -50 | * | (471 | / | 471) | = | -50.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Arroyo Grande High | -50 |
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 | 77798 | 2586 | - | 2628 | = | -42 | * | (480 | / | 480) | = | -42.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Arroyo Grande High | -42 |
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 | 77966 | 2568 | - | 2628 | = | -60 | * | (465 | / | 465) | = | -60.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Arroyo Grande High | -60 |
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 | 78495 | 2580 | - | 2628 | = | -48 | * | (457 | / | 457) | = | -48.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Arroyo Grande High | -48 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-108 | -50 | -42 | -60 | -48 | -308.0 | -61.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 16.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -139.6
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 | 38% | 39% | 35% | 37% | 37% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lucia Mar Unified school district | County of San Luis Obispo
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.
Arroyo Grande High math proficiency
Zero+ meets standard.
29% less $meal
32% less $meal
27% less $meal
32% less $meal
31% 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 Lucia Mar Unified (3)
Arroyo Grande High | Central Coast New Tech High | Nipomo High |