Kensington Elementary (Data source)
Source data for Kensington 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 | 235802 | 2488 | - | 2436 | = | 52 | * | (69 | / | 308) | = | 11.64935065 | ||
4 | 235805 | 2537 | - | 2485 | = | 52 | * | (92 | / | 308) | = | 15.5324675 | ||
5 | 235806 | 2558 | - | 2528 | = | 30 | * | (91 | / | 308) | = | 8.86363635 | ||
6 | 235809 | 2590 | - | 2552 | = | 38 | * | (56 | / | 308) | = | 6.90909088 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Kensington Elementary | 43 |
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 | 6913 | 2512 | - | 2436 | = | 76 | * | (72 | / | 311) | = | 17.5948553 | ||
4 | 6915 | 2551 | - | 2485 | = | 66 | * | (68 | / | 311) | = | 14.43086812 | ||
5 | 6917 | 2557 | - | 2528 | = | 29 | * | (88 | / | 311) | = | 8.20578777 | ||
6 | 6919 | 2608 | - | 2552 | = | 56 | * | (83 | / | 311) | = | 14.94533757 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Kensington 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 | 7126 | 2509 | - | 2436 | = | 73 | * | (77 | / | 286) | = | 19.65384614 | ||
4 | 7127 | 2551 | - | 2485 | = | 66 | * | (77 | / | 286) | = | 17.76923075 | ||
5 | 7129 | 2582 | - | 2528 | = | 54 | * | (60 | / | 286) | = | 11.32867129 | ||
6 | 7131 | 2596 | - | 2552 | = | 44 | * | (72 | / | 286) | = | 11.07692304 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Kensington Elementary | 60 |
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 | 7144 | 2492 | - | 2436 | = | 56 | * | (73 | / | 265) | = | 15.42641509 | ||
4 | 7145 | 2546 | - | 2485 | = | 61 | * | (75 | / | 265) | = | 17.26415089 | ||
5 | 7148 | 2580 | - | 2528 | = | 52 | * | (73 | / | 265) | = | 14.3245283 | ||
6 | 7149 | 2606 | - | 2552 | = | 54 | * | (44 | / | 265) | = | 8.96603769 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Kensington Elementary | 56 |
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 | 7190 | 2485 | - | 2436 | = | 49 | * | (71 | / | 269) | = | 12.93308548 | ||
4 | 7191 | 2511 | - | 2485 | = | 26 | * | (65 | / | 269) | = | 6.28252786 | ||
5 | 7192 | 2567 | - | 2528 | = | 39 | * | (77 | / | 269) | = | 11.16356877 | ||
6 | 7193 | 2621 | - | 2552 | = | 69 | * | (56 | / | 269) | = | 14.36431222 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Kensington Elementary | 45 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
43 | 55 | 60 | 56 | 45 | 259.0 | 51.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 72.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 30.8
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 | 8% | 6% | 8% | 8% | 7% |
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.
Kensington Elementary math proficiency
Zero+ meets standard.
7% less $meal
5% less $meal
6% less $meal
8% less $meal
7% 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.