Alianza Charter (Data source)
Source data for Alianza Charter
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 | 2752219 | 2378 | - | 2436 | = | -58 | * | (87 | / | 398) | = | -12.67839191 | ||
4 | 2752220 | 2438 | - | 2485 | = | -47 | * | (71 | / | 398) | = | -8.38442207 | ||
5 | 2752223 | 2452 | - | 2528 | = | -76 | * | (75 | / | 398) | = | -14.32160804 | ||
6 | 2752224 | 2449 | - | 2552 | = | -103 | * | (63 | / | 398) | = | -16.30402007 | ||
7 | 2752227 | 2461 | - | 2567 | = | -106 | * | (53 | / | 398) | = | -14.11557787 | ||
8 | 2752228 | 2501 | - | 2586 | = | -85 | * | (49 | / | 398) | = | -10.46482405 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Alianza Charter | -76 |
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 | 83716 | 2386 | - | 2436 | = | -50 | * | (81 | / | 396) | = | -10.2272727 | ||
4 | 83718 | 2402 | - | 2485 | = | -83 | * | (80 | / | 396) | = | -16.76767677 | ||
5 | 83721 | 2462 | - | 2528 | = | -66 | * | (68 | / | 396) | = | -11.33333329 | ||
6 | 83723 | 2490 | - | 2552 | = | -62 | * | (64 | / | 396) | = | -10.02020198 | ||
7 | 83724 | 2470 | - | 2567 | = | -97 | * | (52 | / | 396) | = | -12.73737371 | ||
8 | 83727 | 2465 | - | 2586 | = | -121 | * | (51 | / | 396) | = | -15.58333324 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Alianza Charter | -77 |
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 | 86033 | 2427 | - | 2436 | = | -9 | * | (84 | / | 414) | = | -1.82608695 | ||
4 | 86034 | 2408 | - | 2485 | = | -77 | * | (77 | / | 414) | = | -14.32125603 | ||
5 | 86037 | 2477 | - | 2528 | = | -51 | * | (79 | / | 414) | = | -9.73188406 | ||
6 | 86038 | 2474 | - | 2552 | = | -78 | * | (63 | / | 414) | = | -11.86956521 | ||
7 | 86041 | 2508 | - | 2567 | = | -59 | * | (64 | / | 414) | = | -9.12077289 | ||
8 | 86042 | 2502 | - | 2586 | = | -84 | * | (47 | / | 414) | = | -9.53623188 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Alianza Charter | -56 |
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 | 86264 | 2434 | - | 2436 | = | -2 | * | (80 | / | 417) | = | -0.38369304 | ||
4 | 86267 | 2453 | - | 2485 | = | -32 | * | (77 | / | 417) | = | -5.9088729 | ||
5 | 86268 | 2464 | - | 2528 | = | -64 | * | (75 | / | 417) | = | -11.51079136 | ||
6 | 86271 | 2476 | - | 2552 | = | -76 | * | (64 | / | 417) | = | -11.66426857 | ||
7 | 86272 | 2501 | - | 2567 | = | -66 | * | (60 | / | 417) | = | -9.49640287 | ||
8 | 86275 | 2508 | - | 2586 | = | -78 | * | (61 | / | 417) | = | -11.41007189 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Alianza Charter | -50 |
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 | 86863 | 2440 | - | 2436 | = | 4 | * | (83 | / | 416) | = | 0.79807692 | ||
4 | 86864 | 2454 | - | 2485 | = | -31 | * | (76 | / | 416) | = | -5.66346152 | ||
5 | 86865 | 2507 | - | 2528 | = | -21 | * | (76 | / | 416) | = | -3.83653845 | ||
6 | 86866 | 2483 | - | 2552 | = | -69 | * | (64 | / | 416) | = | -10.61538456 | ||
7 | 86867 | 2501 | - | 2567 | = | -66 | * | (59 | / | 416) | = | -9.36057692 | ||
8 | 86868 | 2526 | - | 2586 | = | -60 | * | (58 | / | 416) | = | -8.36538456 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Alianza Charter | -37 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-76 | -77 | -56 | -50 | -37 | -296.0 | -59.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
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 | 78% | 78% | 31% | 73% | 73% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pajaro Valley Unified school district | County of Santa Cruz
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.