South Bay Elementary (Data source)
Source data for South Bay 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 |
||
| 4 | 422465 | 2425 | - | 2485 | = | -60 | * | (61 | / | 177) | = | -20.67796608 | ||
| 5 | 422468 | 2469 | - | 2528 | = | -59 | * | (64 | / | 177) | = | -21.33333328 | ||
| 6 | 422469 | 2521 | - | 2552 | = | -31 | * | (52 | / | 177) | = | -9.10734461 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for South Bay Elementary | -51 | ||||||||||||
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 |
||
| 4 | 13218 | 2449 | - | 2485 | = | -36 | * | (68 | / | 187) | = | -13.09090907 | ||
| 5 | 13219 | 2424 | - | 2528 | = | -104 | * | (63 | / | 187) | = | -35.03743308 | ||
| 6 | 13221 | 2515 | - | 2552 | = | -37 | * | (56 | / | 187) | = | -11.08021388 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for South Bay Elementary | -59 | ||||||||||||
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 | 13549 | 0 | - | 2436 | = | * | (0 | / | 179) | = | ||||
| 4 | 13551 | 2447 | - | 2485 | = | -38 | * | (61 | / | 179) | = | -12.94972064 | ||
| 5 | 13553 | 2434 | - | 2528 | = | -94 | * | (67 | / | 179) | = | -35.18435745 | ||
| 6 | 13554 | 2434 | - | 2552 | = | -118 | * | (50 | / | 179) | = | -32.96089374 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for South Bay Elementary | -81 | ||||||||||||
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 |
||
| 4 | 13545 | 2425 | - | 2485 | = | -60 | * | (46 | / | 171) | = | -16.14035082 | ||
| 5 | 13546 | 2448 | - | 2528 | = | -80 | * | (62 | / | 171) | = | -29.00584792 | ||
| 6 | 13549 | 2496 | - | 2552 | = | -56 | * | (63 | / | 171) | = | -20.63157891 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for South Bay Elementary | -66 | ||||||||||||
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 | 13668 | 0 | - | 2436 | = | * | (0 | / | 162) | = | ||||
| 4 | 13669 | 2445 | - | 2485 | = | -40 | * | (59 | / | 162) | = | -14.5679012 | ||
| 5 | 13670 | 2428 | - | 2528 | = | -100 | * | (41 | / | 162) | = | -25.3086419 | ||
| 6 | 13671 | 2464 | - | 2552 | = | -88 | * | (61 | / | 162) | = | -33.13580239 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for South Bay Elementary | -73 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -51 | -59 | -81 | -66 | -73 | -330.0 | -66.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -99.0
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 | 63% | 61% | 72% | 71% | 75% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
South Bay Union Elementary school district | County of Humboldt
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.
South Bay Elementary math proficiency
Zero+ meets standard.
47% less $meal
45% less $meal
57% less $meal
68% less $meal
69% 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 South Bay Union Elementary (2)
| Pine Hill Elementary | South Bay Elementary |