Bobier Elementary (Data source)
Source data for Bobier 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 | 2316728 | 2368 | - | 2436 | = | -68 | * | (114 | / | 346) | = | -22.40462422 | ||
| 4 | 2316729 | 2434 | - | 2485 | = | -51 | * | (125 | / | 346) | = | -18.42485548 | ||
| 5 | 2316732 | 2448 | - | 2528 | = | -80 | * | (107 | / | 346) | = | -24.73988432 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bobier Elementary | -66 | ||||||||||||
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 | 70910 | 2392 | - | 2436 | = | -44 | * | (131 | / | 376) | = | -15.32978722 | ||
| 4 | 70911 | 2406 | - | 2485 | = | -79 | * | (119 | / | 376) | = | -25.00265952 | ||
| 5 | 70914 | 2434 | - | 2528 | = | -94 | * | (126 | / | 376) | = | -31.49999991 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bobier Elementary | -72 | ||||||||||||
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 | 72764 | 2422 | - | 2436 | = | -14 | * | (90 | / | 328) | = | -3.8414634 | ||
| 4 | 72767 | 2411 | - | 2485 | = | -74 | * | (125 | / | 328) | = | -28.20121944 | ||
| 5 | 72768 | 2424 | - | 2528 | = | -104 | * | (113 | / | 328) | = | -35.82926828 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bobier Elementary | -68 | ||||||||||||
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 | 72894 | 2424 | - | 2436 | = | -12 | * | (93 | / | 315) | = | -3.54285714 | ||
| 4 | 72895 | 2426 | - | 2485 | = | -59 | * | (97 | / | 315) | = | -18.16825391 | ||
| 5 | 72898 | 2436 | - | 2528 | = | -92 | * | (125 | / | 315) | = | -36.50793643 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bobier Elementary | -58 | ||||||||||||
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 | 73365 | 2406 | - | 2436 | = | -30 | * | (108 | / | 300) | = | -10.8 | ||
| 4 | 73366 | 2436 | - | 2485 | = | -49 | * | (89 | / | 300) | = | -14.53666663 | ||
| 5 | 73367 | 2439 | - | 2528 | = | -89 | * | (103 | / | 300) | = | -30.55666664 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bobier Elementary | -56 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -66 | -72 | -68 | -58 | -56 | -320.0 | -64.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -46.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -82.0
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 | 97% | 94% | 95% | 94% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Vista Unified school district | County of San Diego
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.
Bobier Elementary math proficiency
Zero+ meets standard.
88% less $meal
84% less $meal
85% less $meal
86% less $meal
86% 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.