Westwood Elementary (Data source)
Source data for Westwood 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 | 2724615 | 2423 | - | 2436 | = | -13 | * | (66 | / | 181) | = | -4.74033148 | ||
| 4 | 2724618 | 2495 | - | 2485 | = | 10 | * | (65 | / | 181) | = | 3.59116022 | ||
| 5 | 2724619 | 2475 | - | 2528 | = | -53 | * | (50 | / | 181) | = | -14.64088393 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Westwood Elementary | -16 | ||||||||||||
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 | 82886 | 2436 | - | 2436 | = | 0 | * | (73 | / | 206) | = | 0.0 | ||
| 4 | 82889 | 2497 | - | 2485 | = | 12 | * | (69 | / | 206) | = | 4.01941747 | ||
| 5 | 82891 | 2503 | - | 2528 | = | -25 | * | (64 | / | 206) | = | -7.76699028 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Westwood Elementary | -4 | ||||||||||||
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 | 85196 | 2452 | - | 2436 | = | 16 | * | (58 | / | 190) | = | 4.88421051 | ||
| 4 | 85199 | 2502 | - | 2485 | = | 17 | * | (67 | / | 190) | = | 5.99473683 | ||
| 5 | 85200 | 2466 | - | 2528 | = | -62 | * | (65 | / | 190) | = | -21.21052631 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Westwood Elementary | -10 | ||||||||||||
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 | 85415 | 2443 | - | 2436 | = | 7 | * | (64 | / | 193) | = | 2.32124352 | ||
| 4 | 85417 | 2513 | - | 2485 | = | 28 | * | (58 | / | 193) | = | 8.41450775 | ||
| 5 | 85419 | 2498 | - | 2528 | = | -30 | * | (71 | / | 193) | = | -11.03626941 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Westwood Elementary | 0 | ||||||||||||
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 | 86010 | 2473 | - | 2436 | = | 37 | * | (57 | / | 180) | = | 11.71666664 | ||
| 4 | 86011 | 2507 | - | 2485 | = | 22 | * | (67 | / | 180) | = | 8.18888888 | ||
| 5 | 86012 | 2508 | - | 2528 | = | -20 | * | (56 | / | 180) | = | -6.22222222 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Westwood Elementary | 14 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -16 | -4 | -10 | 0 | 14 | -16.0 | -3.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 32.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -40.0
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% | 32% | 35% | 42% | 39% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Clara 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.
Westwood Elementary math proficiency
Zero+ meets standard.
29% less $meal
25% less $meal
25% less $meal
34% 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.