Abbott Middle (Data source)
Source data for Abbott Middle
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 |
||
| 6 | 2550679 | 2507 | - | 2552 | = | -45 | * | (274 | / | 798) | = | -15.45112778 | ||
| 7 | 2550682 | 2523 | - | 2567 | = | -44 | * | (258 | / | 798) | = | -14.22556388 | ||
| 8 | 2550683 | 2527 | - | 2586 | = | -59 | * | (266 | / | 798) | = | -19.66666665 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Abbott Middle | -49 | ||||||||||||
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 |
||
| 6 | 77746 | 2502 | - | 2552 | = | -50 | * | (262 | / | 796) | = | -16.4572864 | ||
| 7 | 77748 | 2528 | - | 2567 | = | -39 | * | (269 | / | 796) | = | -13.17964822 | ||
| 8 | 77749 | 2545 | - | 2586 | = | -41 | * | (265 | / | 796) | = | -13.64949745 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Abbott Middle | -43 | ||||||||||||
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 |
||
| 6 | 79899 | 2498 | - | 2552 | = | -54 | * | (290 | / | 820) | = | -19.09756094 | ||
| 7 | 79901 | 2512 | - | 2567 | = | -55 | * | (265 | / | 820) | = | -17.77439021 | ||
| 8 | 79902 | 2540 | - | 2586 | = | -46 | * | (265 | / | 820) | = | -14.86585363 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Abbott Middle | -52 | ||||||||||||
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 |
||
| 6 | 80056 | 2489 | - | 2552 | = | -63 | * | (284 | / | 820) | = | -21.81951217 | ||
| 7 | 80057 | 2529 | - | 2567 | = | -38 | * | (277 | / | 820) | = | -12.83658536 | ||
| 8 | 80060 | 2498 | - | 2586 | = | -88 | * | (259 | / | 820) | = | -27.7951219 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Abbott Middle | -62 | ||||||||||||
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 |
||
| 6 | 80549 | 2501 | - | 2552 | = | -51 | * | (237 | / | 798) | = | -15.14661653 | ||
| 7 | 80550 | 2501 | - | 2567 | = | -66 | * | (288 | / | 798) | = | -23.81954883 | ||
| 8 | 80551 | 2544 | - | 2586 | = | -42 | * | (273 | / | 798) | = | -14.36842105 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Abbott Middle | -53 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -49 | -43 | -52 | -62 | -53 | -259.0 | -51.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -69.8
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 | 41% | 37% | 39% | 45% | 47% |
| 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.
Abbott Middle math proficiency
Zero+ meets standard.
34% less $meal
32% less $meal
33% less $meal
40% less $meal
43% 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.
Intermediate/Middle Schools (Public) schools in San Mateo-Foster City (3)
| Abbott Middle | Borel Middle | Bowditch Middle |