Sandpiper Elementary (Data source)
Source data for Sandpiper 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 | 2509421 | 2528 | - | 2436 | = | 92 | * | (98 | / | 264) | = | 34.15151513 | ||
4 | 2509422 | 2534 | - | 2485 | = | 49 | * | (95 | / | 264) | = | 17.63257572 | ||
5 | 2509425 | 2568 | - | 2528 | = | 40 | * | (71 | / | 264) | = | 10.75757572 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sandpiper Elementary | 63 |
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 | 76544 | 2532 | - | 2436 | = | 96 | * | (69 | / | 252) | = | 26.28571421 | ||
4 | 76545 | 2566 | - | 2485 | = | 81 | * | (97 | / | 252) | = | 31.17857135 | ||
5 | 76547 | 2578 | - | 2528 | = | 50 | * | (86 | / | 252) | = | 17.06349205 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sandpiper Elementary | 75 |
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 | 78596 | 2525 | - | 2436 | = | 89 | * | (100 | / | 269) | = | 33.08550178 | ||
4 | 78598 | 2554 | - | 2485 | = | 69 | * | (72 | / | 269) | = | 18.46840145 | ||
5 | 78600 | 2605 | - | 2528 | = | 77 | * | (97 | / | 269) | = | 27.76579922 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sandpiper Elementary | 79 |
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 | 78741 | 2513 | - | 2436 | = | 77 | * | (72 | / | 295) | = | 18.79322029 | ||
4 | 78743 | 2575 | - | 2485 | = | 90 | * | (97 | / | 295) | = | 29.59322031 | ||
5 | 78745 | 2586 | - | 2528 | = | 58 | * | (77 | / | 295) | = | 15.13898304 | ||
6 | 78747 | 2618 | - | 2552 | = | 66 | * | (49 | / | 295) | = | 10.9627118 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sandpiper Elementary | 74 |
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 | 79271 | 2536 | - | 2436 | = | 100 | * | (75 | / | 353) | = | 21.2464589 | ||
4 | 79272 | 2546 | - | 2485 | = | 61 | * | (75 | / | 353) | = | 12.96033993 | ||
5 | 79273 | 2607 | - | 2528 | = | 79 | * | (102 | / | 353) | = | 22.82719544 | ||
6 | 79274 | 2611 | - | 2552 | = | 59 | * | (53 | / | 353) | = | 8.85835694 | ||
7 | 79275 | 2663 | - | 2567 | = | 96 | * | (48 | / | 353) | = | 13.05382435 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sandpiper Elementary | 79 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
63 | 75 | 79 | 74 | 79 | 370.0 | 74.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 92.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 56.0
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 | 6% | 5% | 4% | 4% | 5% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Belmont-Redwood Shores 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.
Sandpiper Elementary math proficiency
Zero+ meets standard.

4% less $meal

4% less $meal

3% less $meal

3% less $meal

5% 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 Belmont-Redwood Shores Elementary (6)
Central Elementary | Cipriani Elementary | Fox Elementary |
Nesbit Elementary | Redwood Shores Elementary | Sandpiper Elementary |