Joshua Chadbourne Elementary (Data source)
Source data for Joshua Chadbourne 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 | 38486 | 2515 | - | 2436 | = | 79 | * | (125 | / | 531) | = | 18.59698678 | ||
| 4 | 38487 | 2574 | - | 2485 | = | 89 | * | (124 | / | 531) | = | 20.78342747 | ||
| 5 | 38490 | 2617 | - | 2528 | = | 89 | * | (153 | / | 531) | = | 25.64406778 | ||
| 6 | 38491 | 2646 | - | 2552 | = | 94 | * | (129 | / | 531) | = | 22.83615818 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Joshua Chadbourne Elementary | 88 | ||||||||||||
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 | 1019 | 2531 | - | 2436 | = | 95 | * | (103 | / | 503) | = | 19.45328025 | ||
| 4 | 1022 | 2583 | - | 2485 | = | 98 | * | (125 | / | 503) | = | 24.35387671 | ||
| 5 | 1024 | 2615 | - | 2528 | = | 87 | * | (125 | / | 503) | = | 21.6202783 | ||
| 6 | 1026 | 2665 | - | 2552 | = | 113 | * | (150 | / | 503) | = | 33.69781306 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Joshua Chadbourne Elementary | 99 | ||||||||||||
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 | 1070 | 2531 | - | 2436 | = | 95 | * | (112 | / | 476) | = | 22.35294112 | ||
| 4 | 1072 | 2580 | - | 2485 | = | 95 | * | (111 | / | 476) | = | 22.15336132 | ||
| 5 | 1074 | 2612 | - | 2528 | = | 84 | * | (126 | / | 476) | = | 22.23529409 | ||
| 6 | 1075 | 2653 | - | 2552 | = | 101 | * | (127 | / | 476) | = | 26.94747892 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Joshua Chadbourne Elementary | 94 | ||||||||||||
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 | 1094 | 2546 | - | 2436 | = | 110 | * | (112 | / | 478) | = | 25.77405853 | ||
| 4 | 1096 | 2585 | - | 2485 | = | 100 | * | (121 | / | 478) | = | 25.3138075 | ||
| 5 | 1098 | 2611 | - | 2528 | = | 83 | * | (118 | / | 478) | = | 20.48953969 | ||
| 6 | 1100 | 2650 | - | 2552 | = | 98 | * | (127 | / | 478) | = | 26.03765685 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Joshua Chadbourne Elementary | 98 | ||||||||||||
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 | 1122 | 2538 | - | 2436 | = | 102 | * | (104 | / | 461) | = | 23.01084596 | ||
| 4 | 1123 | 2599 | - | 2485 | = | 114 | * | (120 | / | 461) | = | 29.67462032 | ||
| 5 | 1124 | 2623 | - | 2528 | = | 95 | * | (119 | / | 461) | = | 24.52277655 | ||
| 6 | 1125 | 2647 | - | 2552 | = | 95 | * | (118 | / | 461) | = | 24.31670274 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Joshua Chadbourne Elementary | 102 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 88 | 99 | 94 | 98 | 102 | 481.0 | 96.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 111.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 81.2
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 | 5% | 7% | 5% | 5% | 6% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Fremont Unified school district | County of Alameda
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Joshua Chadbourne Elementary math proficiency
Zero+ meets standard.
4% less $meal
5% less $meal
4% less $meal
5% less $meal
5% 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.