Shannon Elementary (Data source)
Source data for Shannon 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 | 239980 | 2401 | - | 2436 | = | -35 | * | (40 | / | 158) | = | -8.86075946 | ||
4 | 239981 | 2430 | - | 2485 | = | -55 | * | (41 | / | 158) | = | -14.27215185 | ||
5 | 239984 | 2468 | - | 2528 | = | -60 | * | (36 | / | 158) | = | -13.67088606 | ||
6 | 239985 | 2461 | - | 2552 | = | -91 | * | (41 | / | 158) | = | -23.61392397 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Shannon Elementary | -60 |
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 | 7038 | 2419 | - | 2436 | = | -17 | * | (40 | / | 159) | = | -4.27672956 | ||
4 | 7039 | 2475 | - | 2485 | = | -10 | * | (41 | / | 159) | = | -2.57861635 | ||
5 | 7042 | 2482 | - | 2528 | = | -46 | * | (45 | / | 159) | = | -13.01886788 | ||
6 | 7044 | 2491 | - | 2552 | = | -61 | * | (33 | / | 159) | = | -12.66037731 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Shannon Elementary | -33 |
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 | 7250 | 2413 | - | 2436 | = | -23 | * | (47 | / | 154) | = | -7.01948052 | ||
4 | 7251 | 2458 | - | 2485 | = | -27 | * | (27 | / | 154) | = | -4.73376623 | ||
5 | 7253 | 2499 | - | 2528 | = | -29 | * | (36 | / | 154) | = | -6.77922076 | ||
6 | 7255 | 2539 | - | 2552 | = | -13 | * | (44 | / | 154) | = | -3.71428571 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Shannon Elementary | -22 |
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 | 7267 | 2433 | - | 2436 | = | -3 | * | (43 | / | 154) | = | -0.83766234 | ||
4 | 7269 | 2456 | - | 2485 | = | -29 | * | (51 | / | 154) | = | -9.6038961 | ||
5 | 7271 | 2503 | - | 2528 | = | -25 | * | (28 | / | 154) | = | -4.54545453 | ||
6 | 7273 | 2574 | - | 2552 | = | 22 | * | (32 | / | 154) | = | 4.57142855 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Shannon Elementary | -10 |
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 | 7318 | 2404 | - | 2436 | = | -32 | * | (48 | / | 165) | = | -9.30909088 | ||
4 | 7319 | 2461 | - | 2485 | = | -24 | * | (43 | / | 165) | = | -6.25454544 | ||
5 | 7320 | 2476 | - | 2528 | = | -52 | * | (46 | / | 165) | = | -14.49696966 | ||
6 | 7321 | 2589 | - | 2552 | = | 37 | * | (28 | / | 165) | = | 6.27878785 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Shannon Elementary | -24 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-60 | -33 | -22 | -10 | -24 | -149.0 | -29.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 24.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.8
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 | 66% | 76% | 65% | 70% | 65% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
West Contra Costa 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.
Shannon Elementary math proficiency
Zero+ meets standard.
54% less $meal
62% less $meal
55% less $meal
58% less $meal
53% 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.