Sunnybrae Elementary (Data source)
Source data for Sunnybrae 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 | 2556202 | 2421 | - | 2436 | = | -15 | * | (88 | / | 250) | = | -5.28 | ||
| 4 | 2556203 | 2448 | - | 2485 | = | -37 | * | (91 | / | 250) | = | -13.468 | ||
| 5 | 2556206 | 2492 | - | 2528 | = | -36 | * | (71 | / | 250) | = | -10.224 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sunnybrae Elementary | -29 | ||||||||||||
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 | 77895 | 2419 | - | 2436 | = | -17 | * | (94 | / | 267) | = | -5.98501873 | ||
| 4 | 77897 | 2445 | - | 2485 | = | -40 | * | (85 | / | 267) | = | -12.73408236 | ||
| 5 | 77899 | 2486 | - | 2528 | = | -42 | * | (88 | / | 267) | = | -13.84269659 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sunnybrae Elementary | -33 | ||||||||||||
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 | 80051 | 2383 | - | 2436 | = | -53 | * | (72 | / | 245) | = | -15.5755102 | ||
| 4 | 80052 | 2438 | - | 2485 | = | -47 | * | (89 | / | 245) | = | -17.07346938 | ||
| 5 | 80055 | 2462 | - | 2528 | = | -66 | * | (84 | / | 245) | = | -22.62857137 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sunnybrae Elementary | -55 | ||||||||||||
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 | 80197 | 2385 | - | 2436 | = | -51 | * | (76 | / | 224) | = | -17.30357141 | ||
| 4 | 80200 | 2419 | - | 2485 | = | -66 | * | (62 | / | 224) | = | -18.26785712 | ||
| 5 | 80201 | 2453 | - | 2528 | = | -75 | * | (86 | / | 224) | = | -28.79464283 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sunnybrae Elementary | -64 | ||||||||||||
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 | 80691 | 2385 | - | 2436 | = | -51 | * | (58 | / | 186) | = | -15.90322576 | ||
| 4 | 80692 | 2438 | - | 2485 | = | -47 | * | (69 | / | 186) | = | -17.43548383 | ||
| 5 | 80693 | 2425 | - | 2528 | = | -103 | * | (59 | / | 186) | = | -32.672043 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sunnybrae Elementary | -66 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -29 | -33 | -55 | -64 | -66 | -247.0 | -49.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 1.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.4
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% | 59% | 63% | 67% | 65% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Mateo-Foster City 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.
Sunnybrae Elementary math proficiency
Zero+ meets standard.
55% less $meal
53% less $meal
57% less $meal
61% less $meal
58% 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.