Ruskin Elementary (Data source)
Source data for Ruskin 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 | 2623960 | 2475 | - | 2436 | = | 39 | * | (118 | / | 352) | = | 13.07386361 | ||
| 4 | 2623961 | 2517 | - | 2485 | = | 32 | * | (122 | / | 352) | = | 11.09090909 | ||
| 5 | 2623964 | 2535 | - | 2528 | = | 7 | * | (112 | / | 352) | = | 2.22727273 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ruskin Elementary | 26 | ||||||||||||
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 | 80057 | 2483 | - | 2436 | = | 47 | * | (117 | / | 363) | = | 15.1487603 | ||
| 4 | 80060 | 2501 | - | 2485 | = | 16 | * | (127 | / | 363) | = | 5.59779613 | ||
| 5 | 80062 | 2555 | - | 2528 | = | 27 | * | (119 | / | 363) | = | 8.85123966 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ruskin Elementary | 30 | ||||||||||||
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 | 82250 | 2497 | - | 2436 | = | 61 | * | (112 | / | 350) | = | 19.52 | ||
| 4 | 82253 | 2530 | - | 2485 | = | 45 | * | (115 | / | 350) | = | 14.78571426 | ||
| 5 | 82254 | 2553 | - | 2528 | = | 25 | * | (123 | / | 350) | = | 8.78571428 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ruskin Elementary | 43 | ||||||||||||
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 | 82454 | 2516 | - | 2436 | = | 80 | * | (98 | / | 329) | = | 23.8297872 | ||
| 4 | 82456 | 2523 | - | 2485 | = | 38 | * | (113 | / | 329) | = | 13.05167171 | ||
| 5 | 82458 | 2555 | - | 2528 | = | 27 | * | (118 | / | 329) | = | 9.68389055 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ruskin Elementary | 47 | ||||||||||||
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 | 83070 | 2504 | - | 2436 | = | 68 | * | (94 | / | 302) | = | 21.1655629 | ||
| 4 | 83071 | 2542 | - | 2485 | = | 57 | * | (98 | / | 302) | = | 18.49668873 | ||
| 5 | 83072 | 2557 | - | 2528 | = | 29 | * | (110 | / | 302) | = | 10.56291389 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ruskin Elementary | 50 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 26 | 30 | 43 | 47 | 50 | 196.0 | 39.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 69.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 9.2
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 | 20% | 18% | 19% | 21% | 19% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Berryessa Union Elementary 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.
Ruskin Elementary math proficiency
Zero+ meets standard.
15% less $meal
13% less $meal
14% less $meal
17% less $meal
15% 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.