Alamo Elementary (Data source)
Source data for Alamo 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 | 250599 | 2493 | - | 2436 | = | 57 | * | (57 | / | 173) | = | 18.78034678 | ||
4 | 250600 | 2535 | - | 2485 | = | 50 | * | (58 | / | 173) | = | 16.76300575 | ||
5 | 250603 | 2565 | - | 2528 | = | 37 | * | (58 | / | 173) | = | 12.40462426 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Alamo Elementary | 48 |
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 | 7334 | 2496 | - | 2436 | = | 60 | * | (67 | / | 183) | = | 21.96721308 | ||
4 | 7335 | 2543 | - | 2485 | = | 58 | * | (60 | / | 183) | = | 19.01639342 | ||
5 | 7338 | 2593 | - | 2528 | = | 65 | * | (56 | / | 183) | = | 19.89071032 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Alamo Elementary | 61 |
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 | 7566 | 2503 | - | 2436 | = | 67 | * | (78 | / | 203) | = | 25.74384235 | ||
4 | 7567 | 2546 | - | 2485 | = | 61 | * | (66 | / | 203) | = | 19.83251227 | ||
5 | 7569 | 2600 | - | 2528 | = | 72 | * | (59 | / | 203) | = | 20.92610837 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Alamo Elementary | 67 |
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 | 7584 | 2499 | - | 2436 | = | 63 | * | (60 | / | 202) | = | 18.71287123 | ||
4 | 7585 | 2539 | - | 2485 | = | 54 | * | (75 | / | 202) | = | 20.04950491 | ||
5 | 7588 | 2580 | - | 2528 | = | 52 | * | (67 | / | 202) | = | 17.24752474 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Alamo Elementary | 56 |
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 | 7633 | 2514 | - | 2436 | = | 78 | * | (54 | / | 195) | = | 21.59999993 | ||
4 | 7634 | 2527 | - | 2485 | = | 42 | * | (63 | / | 195) | = | 13.56923077 | ||
5 | 7635 | 2592 | - | 2528 | = | 64 | * | (78 | / | 195) | = | 25.6 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Alamo Elementary | 61 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
48 | 61 | 67 | 56 | 61 | 293.0 | 58.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 79.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 37.6
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 | 2% | 2% | 2% | 3% | 2% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Ramon Valley 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.
Alamo Elementary math proficiency
Zero+ meets standard.
1% less $meal
1% less $meal
2% less $meal
2% less $meal
2% 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.