Horizons School: Independent Study (Data source)
Source data for Horizons School: Independent Study
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 | 204588 | 0 | - | 2436 | = | * | (1 | / | 23) | = | ||||
| 4 | 204589 | 0 | - | 2485 | = | * | (1 | / | 23) | = | ||||
| 5 | 204592 | 0 | - | 2528 | = | * | (0 | / | 23) | = | ||||
| 6 | 204593 | 0 | - | 2552 | = | * | (4 | / | 23) | = | ||||
| 7 | 204596 | 0 | - | 2567 | = | * | (0 | / | 23) | = | ||||
| 8 | 204597 | 0 | - | 2586 | = | * | (2 | / | 23) | = | ||||
| 11 | 204600 | 2573 | - | 2628 | = | -55 | * | (15 | / | 23) | = | -35.86956522 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Horizons School: Independent Study | -36 | ||||||||||||
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 | 6065 | 0 | - | 2436 | = | * | (1 | / | 37) | = | ||||
| 4 | 6067 | 0 | - | 2485 | = | * | (0 | / | 37) | = | ||||
| 5 | 6069 | 0 | - | 2528 | = | * | (3 | / | 37) | = | ||||
| 6 | 6072 | 0 | - | 2552 | = | * | (3 | / | 37) | = | ||||
| 7 | 6074 | 0 | - | 2567 | = | * | (2 | / | 37) | = | ||||
| 8 | 6076 | 0 | - | 2586 | = | * | (2 | / | 37) | = | ||||
| 11 | 6077 | 2578 | - | 2628 | = | -50 | * | (26 | / | 37) | = | -35.1351351 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Horizons School: Independent Study | -35 | ||||||||||||
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 | 6241 | 0 | - | 2436 | = | * | (0 | / | 36) | = | ||||
| 4 | 6244 | 0 | - | 2485 | = | * | (0 | / | 36) | = | ||||
| 5 | 6245 | 0 | - | 2528 | = | * | (0 | / | 36) | = | ||||
| 6 | 6247 | 0 | - | 2552 | = | * | (0 | / | 36) | = | ||||
| 7 | 6250 | 0 | - | 2567 | = | * | (0 | / | 36) | = | ||||
| 8 | 6252 | 0 | - | 2586 | = | * | (0 | / | 36) | = | ||||
| 11 | 6254 | 2574 | - | 2628 | = | -54 | * | (27 | / | 36) | = | -40.5 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Horizons School: Independent Study | -41 | ||||||||||||
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 |
||
| 4 | 6240 | 0 | - | 2485 | = | * | (0 | / | 54) | = | ||||
| 5 | 6242 | 0 | - | 2528 | = | * | (0 | / | 54) | = | ||||
| 6 | 6244 | 0 | - | 2552 | = | * | (0 | / | 54) | = | ||||
| 7 | 6246 | 0 | - | 2567 | = | * | (0 | / | 54) | = | ||||
| 8 | 6248 | 0 | - | 2586 | = | * | (0 | / | 54) | = | ||||
| 11 | 6250 | 2576 | - | 2628 | = | -52 | * | (44 | / | 54) | = | -42.37037033 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Horizons School: Independent Study | -42 | ||||||||||||
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 | 6309 | 0 | - | 2436 | = | * | (0 | / | 49) | = | ||||
| 4 | 6310 | 0 | - | 2485 | = | * | (0 | / | 49) | = | ||||
| 5 | 6311 | 0 | - | 2528 | = | * | (0 | / | 49) | = | ||||
| 6 | 6312 | 0 | - | 2552 | = | * | (0 | / | 49) | = | ||||
| 7 | 6313 | 0 | - | 2567 | = | * | (0 | / | 49) | = | ||||
| 8 | 6314 | 0 | - | 2586 | = | * | (0 | / | 49) | = | ||||
| 11 | 6315 | 2593 | - | 2628 | = | -35 | * | (40 | / | 49) | = | -28.57142855 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Horizons School: Independent Study | -29 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -36 | -35 | -41 | -42 | -29 | -183.0 | -36.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -21.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -51.6
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 | 23% | 16% | 13% | 32% | 34% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Mt. Diablo Unified school district | County of Contra Costa
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.
Horizons School: Independent Study math proficiency
Zero+ meets standard.
20% less $meal
16% less $meal
12% less $meal
31% less $meal
30% 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 Mt. Diablo Unified (2)
| Crossroads High | Horizons School: Independent Study |