Bridgeway Island Elementary (Data source)
Source data for Bridgeway Island 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 | 3180997 | 2449 | - | 2436 | = | 13 | * | (127 | / | 635) | = | 2.6 | ||
4 | 3180998 | 2464 | - | 2485 | = | -21 | * | (103 | / | 635) | = | -3.4062992 | ||
5 | 3181001 | 2501 | - | 2528 | = | -27 | * | (104 | / | 635) | = | -4.42204723 | ||
6 | 3181002 | 2538 | - | 2552 | = | -14 | * | (105 | / | 635) | = | -2.31496062 | ||
7 | 3181005 | 2584 | - | 2567 | = | 17 | * | (100 | / | 635) | = | 2.67716534 | ||
8 | 3181006 | 2605 | - | 2586 | = | 19 | * | (96 | / | 635) | = | 2.87244094 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bridgeway Island Elementary | -2 |
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 | 98034 | 2457 | - | 2436 | = | 21 | * | (111 | / | 665) | = | 3.50526315 | ||
4 | 98037 | 2491 | - | 2485 | = | 6 | * | (125 | / | 665) | = | 1.12781954 | ||
5 | 98039 | 2516 | - | 2528 | = | -12 | * | (104 | / | 665) | = | -1.87669172 | ||
6 | 98040 | 2506 | - | 2552 | = | -46 | * | (111 | / | 665) | = | -7.67819548 | ||
7 | 98043 | 2569 | - | 2567 | = | 2 | * | (120 | / | 665) | = | 0.36090225 | ||
8 | 98044 | 2607 | - | 2586 | = | 21 | * | (94 | / | 665) | = | 2.96842104 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bridgeway Island Elementary | -2 |
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 | 100899 | 2465 | - | 2436 | = | 29 | * | (123 | / | 692) | = | 5.15462426 | ||
4 | 100902 | 2489 | - | 2485 | = | 4 | * | (116 | / | 692) | = | 0.67052023 | ||
5 | 100904 | 2514 | - | 2528 | = | -14 | * | (126 | / | 692) | = | -2.54913294 | ||
6 | 100905 | 2537 | - | 2552 | = | -15 | * | (102 | / | 692) | = | -2.21098265 | ||
7 | 100908 | 2563 | - | 2567 | = | -4 | * | (103 | / | 692) | = | -0.59537572 | ||
8 | 100910 | 2566 | - | 2586 | = | -20 | * | (122 | / | 692) | = | -3.52601156 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bridgeway Island Elementary | -3 |
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 | 101054 | 2468 | - | 2436 | = | 32 | * | (115 | / | 701) | = | 5.24964336 | ||
4 | 101057 | 2493 | - | 2485 | = | 8 | * | (127 | / | 701) | = | 1.44935806 | ||
5 | 101059 | 2518 | - | 2528 | = | -10 | * | (117 | / | 701) | = | -1.66904422 | ||
6 | 101060 | 2550 | - | 2552 | = | -2 | * | (124 | / | 701) | = | -0.35378031 | ||
7 | 101063 | 2566 | - | 2567 | = | -1 | * | (103 | / | 701) | = | -0.14693295 | ||
8 | 101064 | 2589 | - | 2586 | = | 3 | * | (115 | / | 701) | = | 0.49215407 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bridgeway Island Elementary | 5 |
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 | 101702 | 2445 | - | 2436 | = | 9 | * | (119 | / | 692) | = | 1.54768785 | ||
4 | 101703 | 2499 | - | 2485 | = | 14 | * | (110 | / | 692) | = | 2.22543352 | ||
5 | 101704 | 2524 | - | 2528 | = | -4 | * | (127 | / | 692) | = | -0.73410404 | ||
6 | 101705 | 2550 | - | 2552 | = | -2 | * | (114 | / | 692) | = | -0.32947977 | ||
7 | 101706 | 2563 | - | 2567 | = | -4 | * | (123 | / | 692) | = | -0.71098266 | ||
8 | 101707 | 2605 | - | 2586 | = | 19 | * | (99 | / | 692) | = | 2.71820808 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bridgeway Island Elementary | 5 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-2 | -2 | -3 | 5 | 5 | 3.0 | 0.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 12.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -11.4
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 | 40% | 36% | 36% | 39% | 38% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Washington Unified school district County of Yolo
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.
Bridgeway Island Elementary math proficiency
Zero+ meets standard.
29% less $meal
29% less $meal
29% less $meal
33% less $meal
32% 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.
Elementary School (Public) schools in Washington Unified (7)
Bridgeway Island Elementary | Elkhorn Village Elementary | Riverbank Elementary |
Southport Elementary | Stonegate Elementary | Westfield Village Elementary |
Westmore Oaks Elementary |