Liberty (Alternative) (Data source)
Source data for Liberty (Alternative)
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 | 2705313 | 0 | - | 2552 | = | * | (3 | / | 104) | = | ||||
| 7 | 2705316 | 0 | - | 2567 | = | * | (0 | / | 104) | = | ||||
| 8 | 2705317 | 2431 | - | 2586 | = | -155 | * | (13 | / | 104) | = | -19.375 | ||
| 11 | 2705320 | 2445 | - | 2628 | = | -183 | * | (88 | / | 104) | = | -154.84615382 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Liberty (Alternative) | -174 | ||||||||||||
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 |
||
| 7 | 82383 | 0 | - | 2567 | = | * | (2 | / | 104) | = | ||||
| 8 | 82385 | 0 | - | 2586 | = | * | (5 | / | 104) | = | ||||
| 11 | 82386 | 2434 | - | 2628 | = | -194 | * | (97 | / | 104) | = | -180.94230756 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Liberty (Alternative) | -181 | ||||||||||||
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 | 84659 | 0 | - | 2552 | = | * | (0 | / | 115) | = | ||||
| 7 | 84661 | 0 | - | 2567 | = | * | (0 | / | 115) | = | ||||
| 8 | 84662 | 0 | - | 2586 | = | * | (0 | / | 115) | = | ||||
| 11 | 84664 | 2438 | - | 2628 | = | -190 | * | (102 | / | 115) | = | -168.52173899 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Liberty (Alternative) | -169 | ||||||||||||
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 |
||
| 6 | 84878 | 0 | - | 2552 | = | * | (0 | / | 108) | = | ||||
| 7 | 84881 | 0 | - | 2567 | = | * | (0 | / | 108) | = | ||||
| 8 | 84882 | 0 | - | 2586 | = | * | (0 | / | 108) | = | ||||
| 11 | 84885 | 2438 | - | 2628 | = | -190 | * | (95 | / | 108) | = | -167.12962951 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Liberty (Alternative) | -167 | ||||||||||||
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 |
||
| 6 | 85473 | 0 | - | 2552 | = | * | (0 | / | 95) | = | ||||
| 7 | 85474 | 0 | - | 2567 | = | * | (0 | / | 95) | = | ||||
| 8 | 85475 | 0 | - | 2586 | = | * | (4 | / | 95) | = | ||||
| 11 | 85476 | 2452 | - | 2628 | = | -176 | * | (90 | / | 95) | = | -166.7368421 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Liberty (Alternative) | -167 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -174 | -181 | -169 | -167 | -167 | -858.0 | -171.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -156.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -186.6
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 | 39% | 37% | 49% | 57% | 48% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Jose Unified school district | County of Santa Clara
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.
Liberty (Alternative) math proficiency
Zero+ meets standard.
36% less $meal
37% less $meal
43% less $meal
54% less $meal
44% 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.
Alternative Schools of Choice schools in San Jose Unified (1)
| Liberty (Alternative) |