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 | 215083 | 2413 | - | 2436 | = | -23 | * | (60 | / | 175) | = | -7.88571427 | ||
4 | 215084 | 2407 | - | 2485 | = | -78 | * | (54 | / | 175) | = | -24.06857138 | ||
5 | 215087 | 2457 | - | 2528 | = | -71 | * | (61 | / | 175) | = | -24.74857139 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Westwood Elementary | -57 |
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 | 6366 | 2392 | - | 2436 | = | -44 | * | (52 | / | 162) | = | -14.12345678 | ||
4 | 6367 | 2432 | - | 2485 | = | -53 | * | (55 | / | 162) | = | -17.99382712 | ||
5 | 6370 | 2462 | - | 2528 | = | -66 | * | (55 | / | 162) | = | -22.40740735 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Westwood Elementary | -55 |
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 | 6542 | 2393 | - | 2436 | = | -43 | * | (57 | / | 158) | = | -15.5126582 | ||
4 | 6543 | 2404 | - | 2485 | = | -81 | * | (47 | / | 158) | = | -24.09493667 | ||
5 | 6545 | 2471 | - | 2528 | = | -57 | * | (54 | / | 158) | = | -19.48101261 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Westwood Elementary | -59 |
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 | 6543 | 2421 | - | 2436 | = | -15 | * | (42 | / | 136) | = | -4.63235294 | ||
4 | 6545 | 2427 | - | 2485 | = | -58 | * | (51 | / | 136) | = | -21.75 | ||
5 | 6547 | 2450 | - | 2528 | = | -78 | * | (43 | / | 136) | = | -24.66176466 | ||
6 | 6549 | 0 | - | 2552 | = | * | (0 | / | 136) | = | ||||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Westwood Elementary | -51 |
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 | 6601 | 2391 | - | 2436 | = | -45 | * | (45 | / | 136) | = | -14.88970584 | ||
4 | 6602 | 2443 | - | 2485 | = | -42 | * | (42 | / | 136) | = | -12.97058822 | ||
5 | 6603 | 2452 | - | 2528 | = | -76 | * | (49 | / | 136) | = | -27.38235289 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Westwood Elementary | -55 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-57 | -55 | -59 | -51 | -55 | -277.0 | -55.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -49.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -61.4
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 | 49% | 44% | 43% | 45% | 46% |
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, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Westwood Elementary math proficiency
Zero+ meets standard.
41% less $meal
38% less $meal
36% less $meal
41% less $meal
40% 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.