Columbia Middle (Data source)
Source data for Columbia 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 | 2729996 | 2499 | - | 2552 | = | -53 | * | (240 | / | 701) | = | -18.14550639 | ||
| 7 | 2729999 | 2496 | - | 2567 | = | -71 | * | (230 | / | 701) | = | -23.29529241 | ||
| 8 | 2730000 | 2512 | - | 2586 | = | -74 | * | (231 | / | 701) | = | -24.38516398 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Columbia Middle | -66 | ||||||||||||
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 | 83026 | 2505 | - | 2552 | = | -47 | * | (212 | / | 683) | = | -14.58857976 | ||
| 7 | 83029 | 2509 | - | 2567 | = | -58 | * | (241 | / | 683) | = | -20.46559296 | ||
| 8 | 83031 | 2521 | - | 2586 | = | -65 | * | (230 | / | 683) | = | -21.88872615 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Columbia Middle | -57 | ||||||||||||
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 | 85348 | 2477 | - | 2552 | = | -75 | * | (285 | / | 734) | = | -29.12125335 | ||
| 7 | 85350 | 2502 | - | 2567 | = | -65 | * | (197 | / | 734) | = | -17.44550405 | ||
| 8 | 85353 | 2521 | - | 2586 | = | -65 | * | (252 | / | 734) | = | -22.31607625 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Columbia Middle | -69 | ||||||||||||
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 | 85568 | 2488 | - | 2552 | = | -64 | * | (269 | / | 742) | = | -23.20215629 | ||
| 7 | 85570 | 2488 | - | 2567 | = | -79 | * | (272 | / | 742) | = | -28.9595687 | ||
| 8 | 85572 | 2507 | - | 2586 | = | -79 | * | (201 | / | 742) | = | -21.40026947 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Columbia Middle | -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 |
||
| 6 | 86158 | 2483 | - | 2552 | = | -69 | * | (239 | / | 774) | = | -21.3062015 | ||
| 7 | 86159 | 2493 | - | 2567 | = | -74 | * | (270 | / | 774) | = | -25.81395347 | ||
| 8 | 86160 | 2487 | - | 2586 | = | -99 | * | (265 | / | 774) | = | -33.89534874 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Columbia Middle | -81 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -66 | -57 | -69 | -74 | -81 | -347.0 | -69.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -45.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.4
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% | 60% | 54% | 58% | 57% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Sunnyvale school district | County of Santa Clara
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.
Columbia Middle math proficiency
Zero+ meets standard.
47% less $meal
45% less $meal
40% less $meal
46% less $meal
47% 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 Sunnyvale (2)
| Columbia Middle | Sunnyvale Middle |