Rollingwood Elementary (Data source)
Source data for Rollingwood 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 | 2547083 | 2440 | - | 2436 | = | 4 | * | (46 | / | 119) | = | 1.54621848 | ||
| 4 | 2547086 | 2452 | - | 2485 | = | -33 | * | (42 | / | 119) | = | -11.64705881 | ||
| 5 | 2547087 | 2472 | - | 2528 | = | -56 | * | (31 | / | 119) | = | -14.58823526 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rollingwood Elementary | -25 | ||||||||||||
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 | 77644 | 2443 | - | 2436 | = | 7 | * | (34 | / | 117) | = | 2.03418803 | ||
| 4 | 77645 | 2486 | - | 2485 | = | 1 | * | (45 | / | 117) | = | 0.38461538 | ||
| 5 | 77647 | 2476 | - | 2528 | = | -52 | * | (38 | / | 117) | = | -16.88888885 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rollingwood Elementary | -14 | ||||||||||||
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 | 79786 | 2413 | - | 2436 | = | -23 | * | (25 | / | 103) | = | -5.58252426 | ||
| 4 | 79789 | 2479 | - | 2485 | = | -6 | * | (32 | / | 103) | = | -1.86407767 | ||
| 5 | 79790 | 2524 | - | 2528 | = | -4 | * | (46 | / | 103) | = | -1.78640776 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rollingwood Elementary | -9 | ||||||||||||
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 | 79926 | 2386 | - | 2436 | = | -50 | * | (36 | / | 97) | = | -18.556701 | ||
| 4 | 79927 | 2444 | - | 2485 | = | -41 | * | (26 | / | 97) | = | -10.98969072 | ||
| 5 | 79930 | 2510 | - | 2528 | = | -18 | * | (35 | / | 97) | = | -6.49484536 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rollingwood Elementary | -36 | ||||||||||||
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 | 80419 | 2411 | - | 2436 | = | -25 | * | (46 | / | 113) | = | -10.17699115 | ||
| 4 | 80420 | 2435 | - | 2485 | = | -50 | * | (37 | / | 113) | = | -16.3716814 | ||
| 5 | 80421 | 2459 | - | 2528 | = | -69 | * | (30 | / | 113) | = | -18.31858403 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rollingwood Elementary | -45 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -25 | -14 | -9 | -36 | -45 | -129.0 | -25.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 16.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.8
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 | 21% | 36% | 29% | 36% | 38% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Bruno Park Elementary school district | County of San Mateo
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.
Rollingwood Elementary math proficiency
Zero+ meets standard.
16% less $meal
25% less $meal
21% less $meal
31% 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 San Bruno Park Elementary (5)
| Allen (Decima M.) Elementary | Belle Air Elementary | John Muir Elementary |
| Portola Elementary | Rollingwood Elementary |