Edward M. Downer Elementary (Data source)
Source data for Edward M. Downer 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 | 243172 | 2371 | - | 2436 | = | -65 | * | (94 | / | 358) | = | -17.06703908 | ||
4 | 243173 | 2407 | - | 2485 | = | -78 | * | (105 | / | 358) | = | -22.87709494 | ||
5 | 243176 | 2466 | - | 2528 | = | -62 | * | (88 | / | 358) | = | -15.24022341 | ||
6 | 243177 | 2448 | - | 2552 | = | -104 | * | (71 | / | 358) | = | -20.62569829 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Edward M. Downer Elementary | -76 |
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 | 7132 | 2366 | - | 2436 | = | -70 | * | (97 | / | 352) | = | -19.28977267 | ||
4 | 7134 | 2395 | - | 2485 | = | -90 | * | (86 | / | 352) | = | -21.98863629 | ||
5 | 7135 | 2442 | - | 2528 | = | -86 | * | (87 | / | 352) | = | -21.25568174 | ||
6 | 7137 | 2486 | - | 2552 | = | -66 | * | (82 | / | 352) | = | -15.37499997 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Edward M. Downer Elementary | -78 |
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 | 7344 | 2361 | - | 2436 | = | -75 | * | (82 | / | 333) | = | -18.46846845 | ||
4 | 7346 | 2406 | - | 2485 | = | -79 | * | (95 | / | 333) | = | -22.53753752 | ||
5 | 7348 | 2457 | - | 2528 | = | -71 | * | (77 | / | 333) | = | -16.4174174 | ||
6 | 7349 | 2480 | - | 2552 | = | -72 | * | (79 | / | 333) | = | -17.08108106 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Edward M. Downer Elementary | -75 |
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 | 7361 | 2349 | - | 2436 | = | -87 | * | (77 | / | 323) | = | -20.739938 | ||
4 | 7364 | 2398 | - | 2485 | = | -87 | * | (86 | / | 323) | = | -23.1640866 | ||
5 | 7365 | 2458 | - | 2528 | = | -70 | * | (85 | / | 323) | = | -18.42105258 | ||
6 | 7368 | 2480 | - | 2552 | = | -72 | * | (75 | / | 323) | = | -16.71826622 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Edward M. Downer Elementary | -79 |
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 | 7414 | 2371 | - | 2436 | = | -65 | * | (99 | / | 331) | = | -19.44108758 | ||
4 | 7415 | 2393 | - | 2485 | = | -92 | * | (75 | / | 331) | = | -20.84592138 | ||
5 | 7416 | 2423 | - | 2528 | = | -105 | * | (74 | / | 331) | = | -23.47432017 | ||
6 | 7417 | 2473 | - | 2552 | = | -79 | * | (83 | / | 331) | = | -19.80966767 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Edward M. Downer Elementary | -84 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-76 | -78 | -75 | -79 | -84 | -392.0 | -78.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -69.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.4
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 | 96% | 95% | 94% | 91% | 92% |
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.
Edward M. Downer Elementary math proficiency
Zero+ meets standard.
86% less $meal
87% less $meal
86% less $meal
77% less $meal
76% 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.