Westlake Elementary (Data source)
Source data for Westlake 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 | 2757588 | 2477 | - | 2436 | = | 41 | * | (91 | / | 299) | = | 12.47826087 | ||
| 4 | 2757591 | 2507 | - | 2485 | = | 22 | * | (90 | / | 299) | = | 6.62207357 | ||
| 5 | 2757592 | 2558 | - | 2528 | = | 30 | * | (118 | / | 299) | = | 11.83946487 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Westlake Elementary | 31 | ||||||||||||
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 | 83889 | 2456 | - | 2436 | = | 20 | * | (105 | / | 287) | = | 7.31707316 | ||
| 4 | 83891 | 2494 | - | 2485 | = | 9 | * | (90 | / | 287) | = | 2.82229965 | ||
| 5 | 83893 | 2576 | - | 2528 | = | 48 | * | (92 | / | 287) | = | 15.38675957 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Westlake Elementary | 26 | ||||||||||||
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 | 86200 | 2469 | - | 2436 | = | 33 | * | (87 | / | 280) | = | 10.25357141 | ||
| 4 | 86203 | 2495 | - | 2485 | = | 10 | * | (101 | / | 280) | = | 3.60714285 | ||
| 5 | 86204 | 2546 | - | 2528 | = | 18 | * | (92 | / | 280) | = | 5.9142857 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Westlake Elementary | 20 | ||||||||||||
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 | 86432 | 2458 | - | 2436 | = | 22 | * | (92 | / | 279) | = | 7.25448027 | ||
| 4 | 86435 | 2478 | - | 2485 | = | -7 | * | (84 | / | 279) | = | -2.10752688 | ||
| 5 | 86436 | 2554 | - | 2528 | = | 26 | * | (103 | / | 279) | = | 9.5985663 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Westlake Elementary | 15 | ||||||||||||
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 | 87032 | 2476 | - | 2436 | = | 40 | * | (82 | / | 259) | = | 12.66409264 | ||
| 4 | 87033 | 2512 | - | 2485 | = | 27 | * | (94 | / | 259) | = | 9.79922777 | ||
| 5 | 87034 | 2559 | - | 2528 | = | 31 | * | (83 | / | 259) | = | 9.93436292 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Westlake Elementary | 32 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 31 | 26 | 20 | 15 | 32 | 124.0 | 24.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 45.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 3.8
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 | 17% | 19% | 20% | 23% | 21% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Cruz City Elementary 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.
Westlake Elementary math proficiency
Zero+ meets standard.
14% less $meal
16% less $meal
18% less $meal
21% less $meal
18% 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.
Elementary School (Public) schools in Santa Cruz City Elementary (4)
| Bay View Elementary | De Laveaga Elementary | Gault Elementary |
| Westlake Elementary |