Selby Lane Elementary (Data source)
Source data for Selby Lane 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 | 2542503 | 2395 | - | 2436 | = | -41 | * | (66 | / | 418) | = | -6.47368418 | ||
4 | 2542506 | 2451 | - | 2485 | = | -34 | * | (73 | / | 418) | = | -5.93779903 | ||
5 | 2542507 | 2444 | - | 2528 | = | -84 | * | (75 | / | 418) | = | -15.07177031 | ||
6 | 2542510 | 2471 | - | 2552 | = | -81 | * | (55 | / | 418) | = | -10.65789471 | ||
7 | 2542511 | 2530 | - | 2567 | = | -37 | * | (73 | / | 418) | = | -6.46172248 | ||
8 | 2542514 | 2534 | - | 2586 | = | -52 | * | (76 | / | 418) | = | -9.45454541 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Selby Lane Elementary | -54 |
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 | 77526 | 2410 | - | 2436 | = | -26 | * | (54 | / | 392) | = | -3.58163265 | ||
4 | 77528 | 2439 | - | 2485 | = | -46 | * | (58 | / | 392) | = | -6.80612242 | ||
5 | 77530 | 2488 | - | 2528 | = | -40 | * | (62 | / | 392) | = | -6.3265306 | ||
6 | 77532 | 2498 | - | 2552 | = | -54 | * | (84 | / | 392) | = | -11.57142856 | ||
7 | 77533 | 2493 | - | 2567 | = | -74 | * | (59 | / | 392) | = | -11.1377551 | ||
8 | 77536 | 2554 | - | 2586 | = | -32 | * | (75 | / | 392) | = | -6.12244896 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Selby Lane Elementary | -46 |
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 | 79663 | 2392 | - | 2436 | = | -44 | * | (70 | / | 404) | = | -7.62376234 | ||
4 | 79665 | 2449 | - | 2485 | = | -36 | * | (52 | / | 404) | = | -4.63366336 | ||
5 | 79666 | 2447 | - | 2528 | = | -81 | * | (54 | / | 404) | = | -10.82673265 | ||
6 | 79669 | 2522 | - | 2552 | = | -30 | * | (77 | / | 404) | = | -5.71782177 | ||
7 | 79671 | 2487 | - | 2567 | = | -80 | * | (89 | / | 404) | = | -17.62376232 | ||
8 | 79672 | 2539 | - | 2586 | = | -47 | * | (62 | / | 404) | = | -7.21287126 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Selby Lane Elementary | -54 |
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 | 79799 | 2438 | - | 2436 | = | 2 | * | (69 | / | 431) | = | 0.32018561 | ||
4 | 79802 | 2438 | - | 2485 | = | -47 | * | (69 | / | 431) | = | -7.52436193 | ||
5 | 79803 | 2457 | - | 2528 | = | -71 | * | (56 | / | 431) | = | -9.22505797 | ||
6 | 79806 | 2502 | - | 2552 | = | -50 | * | (60 | / | 431) | = | -6.9605568 | ||
7 | 79807 | 2523 | - | 2567 | = | -44 | * | (88 | / | 431) | = | -8.9837587 | ||
8 | 79810 | 2561 | - | 2586 | = | -25 | * | (89 | / | 431) | = | -5.16241298 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Selby Lane Elementary | -38 |
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 | 80304 | 2397 | - | 2436 | = | -39 | * | (82 | / | 411) | = | -7.78102186 | ||
4 | 80305 | 2479 | - | 2485 | = | -6 | * | (63 | / | 411) | = | -0.91970803 | ||
5 | 80306 | 2450 | - | 2528 | = | -78 | * | (67 | / | 411) | = | -12.71532842 | ||
6 | 80307 | 2501 | - | 2552 | = | -51 | * | (55 | / | 411) | = | -6.8248175 | ||
7 | 80308 | 2486 | - | 2567 | = | -81 | * | (60 | / | 411) | = | -11.82481748 | ||
8 | 80309 | 2605 | - | 2586 | = | 19 | * | (84 | / | 411) | = | 3.88321168 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Selby Lane Elementary | -36 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-54 | -46 | -54 | -38 | -36 | -228.0 | -45.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -21.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -69.6
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 | 87% | 71% | 82% | 70% | 79% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Redwood City Elementary school district County of San Mateo
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.
Selby Lane Elementary math proficiency
Zero+ meets standard.
78% less $meal
60% less $meal
63% less $meal
59% less $meal
64% 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 Redwood City Elementary (9)
Clifford Elementary | Garfield Elementary | Henry Ford Elementary |
Hoover Elementary | North Star Academy | Roosevelt Elementary |
Roy Cloud Elementary | Selby Lane Elementary | Taft Elementary |