Rock Springs Elementary (Data source)
Source data for Rock Springs 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 | 2162966 | 2378 | - | 2436 | = | -58 | * | (118 | / | 305) | = | -22.43934421 | ||
| 4 | 2162967 | 2431 | - | 2485 | = | -54 | * | (101 | / | 305) | = | -17.88196716 | ||
| 5 | 2162970 | 2439 | - | 2528 | = | -89 | * | (86 | / | 305) | = | -25.09508196 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rock Springs Elementary | -65 | ||||||||||||
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 | 66402 | 2366 | - | 2436 | = | -70 | * | (107 | / | 337) | = | -22.22551926 | ||
| 4 | 66405 | 2412 | - | 2485 | = | -73 | * | (126 | / | 337) | = | -27.29376852 | ||
| 5 | 66406 | 2449 | - | 2528 | = | -79 | * | (104 | / | 337) | = | -24.37982194 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rock Springs Elementary | -74 | ||||||||||||
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 | 68230 | 2393 | - | 2436 | = | -43 | * | (93 | / | 291) | = | -13.742268 | ||
| 4 | 68232 | 2423 | - | 2485 | = | -62 | * | (92 | / | 291) | = | -19.60137452 | ||
| 5 | 68235 | 2456 | - | 2528 | = | -72 | * | (106 | / | 291) | = | -26.2268041 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rock Springs Elementary | -60 | ||||||||||||
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 | 68384 | 2360 | - | 2436 | = | -76 | * | (80 | / | 255) | = | -23.84313724 | ||
| 4 | 68387 | 2436 | - | 2485 | = | -49 | * | (89 | / | 255) | = | -17.10196074 | ||
| 5 | 68388 | 2452 | - | 2528 | = | -76 | * | (86 | / | 255) | = | -25.63137248 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rock Springs Elementary | -67 | ||||||||||||
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 | 68893 | 2382 | - | 2436 | = | -54 | * | (69 | / | 233) | = | -15.99141631 | ||
| 4 | 68894 | 2400 | - | 2485 | = | -85 | * | (77 | / | 233) | = | -28.09012876 | ||
| 5 | 68895 | 2453 | - | 2528 | = | -75 | * | (87 | / | 233) | = | -28.00429178 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rock Springs Elementary | -72 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -74 | -60 | -67 | -72 | -338.0 | -67.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -82.6
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 | 84% | 81% | 82% | 79% | 82% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Escondido Union school district | County of San Diego
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.
Rock Springs Elementary math proficiency
Zero+ meets standard.
67% less $meal
66% less $meal
68% less $meal
67% less $meal
68% 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.