Rocklin Elementary (Data source)
Source data for Rocklin 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 | 1627581 | 2452 | - | 2436 | = | 16 | * | (95 | / | 358) | = | 4.24581005 | ||
| 4 | 1627584 | 2511 | - | 2485 | = | 26 | * | (88 | / | 358) | = | 6.39106143 | ||
| 5 | 1627585 | 2530 | - | 2528 | = | 2 | * | (94 | / | 358) | = | 0.52513966 | ||
| 6 | 1627588 | 2575 | - | 2552 | = | 23 | * | (81 | / | 358) | = | 5.20391061 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rocklin Elementary | 16 | ||||||||||||
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 | 50880 | 2489 | - | 2436 | = | 53 | * | (73 | / | 341) | = | 11.34604104 | ||
| 4 | 50882 | 2524 | - | 2485 | = | 39 | * | (90 | / | 341) | = | 10.2932551 | ||
| 5 | 50885 | 2546 | - | 2528 | = | 18 | * | (83 | / | 341) | = | 4.38123166 | ||
| 6 | 50886 | 2570 | - | 2552 | = | 18 | * | (95 | / | 341) | = | 5.01466275 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rocklin Elementary | 31 | ||||||||||||
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 | 52340 | 2463 | - | 2436 | = | 27 | * | (76 | / | 333) | = | 6.16216216 | ||
| 4 | 52342 | 2512 | - | 2485 | = | 27 | * | (85 | / | 333) | = | 6.89189189 | ||
| 5 | 52344 | 2555 | - | 2528 | = | 27 | * | (88 | / | 333) | = | 7.13513513 | ||
| 6 | 52346 | 2565 | - | 2552 | = | 13 | * | (84 | / | 333) | = | 3.27927928 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rocklin Elementary | 23 | ||||||||||||
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 | 52407 | 2476 | - | 2436 | = | 40 | * | (81 | / | 339) | = | 9.55752212 | ||
| 4 | 52408 | 2516 | - | 2485 | = | 31 | * | (82 | / | 339) | = | 7.49852506 | ||
| 5 | 52411 | 2538 | - | 2528 | = | 10 | * | (86 | / | 339) | = | 2.53687315 | ||
| 6 | 52412 | 2598 | - | 2552 | = | 46 | * | (90 | / | 339) | = | 12.21238935 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rocklin Elementary | 32 | ||||||||||||
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 | 52582 | 2478 | - | 2436 | = | 42 | * | (80 | / | 352) | = | 9.54545453 | ||
| 4 | 52583 | 2507 | - | 2485 | = | 22 | * | (92 | / | 352) | = | 5.74999999 | ||
| 5 | 52584 | 2542 | - | 2528 | = | 14 | * | (89 | / | 352) | = | 3.53977273 | ||
| 6 | 52585 | 2560 | - | 2552 | = | 8 | * | (91 | / | 352) | = | 2.06818182 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rocklin Elementary | 21 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 16 | 31 | 23 | 32 | 21 | 123.0 | 24.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 42.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 6.6
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 | 40% | 36% | 35% | 37% | 35% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rocklin Unified school district | County of Placer
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.
Rocklin Elementary math proficiency
Zero+ meets standard.
31% less $meal
29% less $meal
25% less $meal
31% less $meal
31% 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.