ALBA (Data source)
Source data for ALBA
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 | 2236234 | 0 | - | 2552 | = | * | (7 | / | 14) | = | ||||
| 7 | 2236237 | 0 | - | 2567 | = | * | (4 | / | 14) | = | ||||
| 8 | 2236238 | 0 | - | 2586 | = | * | (3 | / | 14) | = | ||||
| 11 | 2236241 | 0 | - | 2628 | = | * | (0 | / | 14) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for ALBA | |||||||||||||
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 |
||
| 6 | 68649 | 0 | - | 2552 | = | * | (2 | / | 26) | = | ||||
| 7 | 68652 | 2436 | - | 2567 | = | -131 | * | (13 | / | 26) | = | -65.5 | ||
| 8 | 68654 | 2381 | - | 2586 | = | -205 | * | (11 | / | 26) | = | -86.73076922 | ||
| 11 | 68655 | 0 | - | 2628 | = | * | (0 | / | 26) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for ALBA | -152 | ||||||||||||
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 |
||
| 6 | 70465 | 0 | - | 2552 | = | * | (0 | / | 27) | = | ||||
| 7 | 70466 | 0 | - | 2567 | = | * | (0 | / | 27) | = | ||||
| 8 | 70468 | 2407 | - | 2586 | = | -179 | * | (14 | / | 27) | = | -92.81481472 | ||
| 11 | 70470 | 0 | - | 2628 | = | * | (0 | / | 27) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for ALBA | -93 | ||||||||||||
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 |
||
| 7 | 70614 | 0 | - | 2567 | = | * | (0 | / | 17) | = | ||||
| 8 | 70615 | 0 | - | 2586 | = | * | (0 | / | 17) | = | ||||
| 11 | 70618 | 0 | - | 2628 | = | * | (0 | / | 17) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for ALBA | |||||||||||||
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 |
||
| 7 | 71101 | 0 | - | 2567 | = | * | (0 | / | 19) | = | ||||
| 8 | 71102 | 2353 | - | 2586 | = | -233 | * | (12 | / | 19) | = | -147.15789465 | ||
| 11 | 71103 | 0 | - | 2628 | = | * | (6 | / | 19) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for ALBA | -147 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -152 | -93 | -147 | -392.0 | -78.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -34.666666666666666667
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -226.666666666666666667
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 | 79% | 89% | 81% | 85% | 87% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Diego Unified school district | County of San Diego
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.
ALBA math proficiency
Zero+ meets standard.
79% less $meal
78% less $meal
72% 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.
District Community Day Schools schools in San Diego Unified (1)
| ALBA |