Rocketship Spark Academy (Data source)
Source data for Rocketship Spark Academy
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 | 2654820 | 2488 | - | 2436 | = | 52 | * | (109 | / | 184) | = | 30.80434781 | ||
| 4 | 2654821 | 2505 | - | 2485 | = | 20 | * | (55 | / | 184) | = | 5.97826086 | ||
| 5 | 2654824 | 2507 | - | 2528 | = | -21 | * | (20 | / | 184) | = | -2.28260869 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rocketship Spark Academy | 34 | ||||||||||||
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 | 80920 | 2477 | - | 2436 | = | 41 | * | (109 | / | 240) | = | 18.62083331 | ||
| 4 | 80922 | 2532 | - | 2485 | = | 47 | * | (94 | / | 240) | = | 18.4083333 | ||
| 5 | 80925 | 2506 | - | 2528 | = | -22 | * | (37 | / | 240) | = | -3.39166665 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rocketship Spark Academy | 34 | ||||||||||||
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 | 83149 | 2494 | - | 2436 | = | 58 | * | (115 | / | 246) | = | 27.11382109 | ||
| 4 | 83150 | 2515 | - | 2485 | = | 30 | * | (100 | / | 246) | = | 12.19512195 | ||
| 5 | 83153 | 2553 | - | 2528 | = | 25 | * | (31 | / | 246) | = | 3.1504065 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rocketship Spark Academy | 42 | ||||||||||||
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 | 83368 | 2506 | - | 2436 | = | 70 | * | (110 | / | 241) | = | 31.95020745 | ||
| 4 | 83370 | 2530 | - | 2485 | = | 45 | * | (102 | / | 241) | = | 19.04564313 | ||
| 5 | 83372 | 2518 | - | 2528 | = | -10 | * | (29 | / | 241) | = | -1.2033195 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rocketship Spark Academy | 50 | ||||||||||||
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 | 83982 | 2507 | - | 2436 | = | 71 | * | (109 | / | 233) | = | 33.21459222 | ||
| 4 | 83983 | 2555 | - | 2485 | = | 70 | * | (97 | / | 233) | = | 29.14163084 | ||
| 5 | 83984 | 2548 | - | 2528 | = | 20 | * | (27 | / | 233) | = | 2.31759656 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rocketship Spark Academy | 65 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 34 | 34 | 42 | 50 | 65 | 225.0 | 45.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
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 | 80% | 81% | 72% | 71% | 66% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Franklin-McKinley 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.
