Norwood Creek Elementary (Data source)
Source data for Norwood Creek 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 | 2650261 | 2433 | - | 2436 | = | -3 | * | (109 | / | 418) | = | -0.78229665 | ||
| 4 | 2650262 | 2494 | - | 2485 | = | 9 | * | (95 | / | 418) | = | 2.04545454 | ||
| 5 | 2650265 | 2528 | - | 2528 | = | 0 | * | (100 | / | 418) | = | 0.0 | ||
| 6 | 2650266 | 2552 | - | 2552 | = | 0 | * | (114 | / | 418) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Norwood Creek Elementary | 1 | ||||||||||||
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 | 80791 | 2468 | - | 2436 | = | 32 | * | (93 | / | 409) | = | 7.27628362 | ||
| 4 | 80793 | 2485 | - | 2485 | = | 0 | * | (103 | / | 409) | = | 0.0 | ||
| 5 | 80795 | 2532 | - | 2528 | = | 4 | * | (101 | / | 409) | = | 0.98777506 | ||
| 6 | 80797 | 2576 | - | 2552 | = | 24 | * | (112 | / | 409) | = | 6.57212712 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Norwood Creek Elementary | 15 | ||||||||||||
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 | 83021 | 2454 | - | 2436 | = | 18 | * | (91 | / | 390) | = | 4.19999999 | ||
| 4 | 83022 | 2521 | - | 2485 | = | 36 | * | (98 | / | 390) | = | 9.04615384 | ||
| 5 | 83025 | 2529 | - | 2528 | = | 1 | * | (100 | / | 390) | = | 0.25641026 | ||
| 6 | 83026 | 2583 | - | 2552 | = | 31 | * | (101 | / | 390) | = | 8.0282051 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Norwood Creek Elementary | 22 | ||||||||||||
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 | 83237 | 2477 | - | 2436 | = | 41 | * | (95 | / | 397) | = | 9.81108311 | ||
| 4 | 83240 | 2500 | - | 2485 | = | 15 | * | (99 | / | 397) | = | 3.74055416 | ||
| 5 | 83241 | 2552 | - | 2528 | = | 24 | * | (103 | / | 397) | = | 6.22670023 | ||
| 6 | 83244 | 2569 | - | 2552 | = | 17 | * | (100 | / | 397) | = | 4.28211586 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Norwood Creek Elementary | 24 | ||||||||||||
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 | 83851 | 2482 | - | 2436 | = | 46 | * | (86 | / | 388) | = | 10.19587626 | ||
| 4 | 83852 | 2517 | - | 2485 | = | 32 | * | (97 | / | 388) | = | 8.0 | ||
| 5 | 83853 | 2532 | - | 2528 | = | 4 | * | (95 | / | 388) | = | 0.97938144 | ||
| 6 | 83854 | 2585 | - | 2552 | = | 33 | * | (110 | / | 388) | = | 9.35567008 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Norwood Creek Elementary | 29 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 1 | 15 | 22 | 24 | 29 | 91.0 | 18.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 48.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -11.8
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 | 26% | 22% | 21% | 23% | 22% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Evergreen Elementary 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.
Norwood Creek Elementary math proficiency
Zero+ meets standard.
20% less $meal
16% less $meal
14% less $meal
18% less $meal
18% 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.