Ruhkala Elementary (Data source)
Source data for Ruhkala 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 | 1624791 | 2452 | - | 2436 | = | 16 | * | (75 | / | 255) | = | 4.70588235 | ||
| 4 | 1624794 | 2505 | - | 2485 | = | 20 | * | (57 | / | 255) | = | 4.47058822 | ||
| 5 | 1624795 | 2520 | - | 2528 | = | -8 | * | (64 | / | 255) | = | -2.00784314 | ||
| 6 | 1624798 | 2580 | - | 2552 | = | 28 | * | (59 | / | 255) | = | 6.47843137 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ruhkala Elementary | 14 | ||||||||||||
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 | 50791 | 2480 | - | 2436 | = | 44 | * | (55 | / | 253) | = | 9.56521738 | ||
| 4 | 50792 | 2514 | - | 2485 | = | 29 | * | (78 | / | 253) | = | 8.94071146 | ||
| 5 | 50795 | 2547 | - | 2528 | = | 19 | * | (56 | / | 253) | = | 4.20553359 | ||
| 6 | 50796 | 2590 | - | 2552 | = | 38 | * | (64 | / | 253) | = | 9.61264819 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ruhkala Elementary | 32 | ||||||||||||
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 | 52242 | 2475 | - | 2436 | = | 39 | * | (47 | / | 251) | = | 7.30278884 | ||
| 4 | 52245 | 2516 | - | 2485 | = | 31 | * | (63 | / | 251) | = | 7.78087647 | ||
| 5 | 52247 | 2534 | - | 2528 | = | 6 | * | (82 | / | 251) | = | 1.96015936 | ||
| 6 | 52248 | 2584 | - | 2552 | = | 32 | * | (59 | / | 251) | = | 7.52191232 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ruhkala Elementary | 25 | ||||||||||||
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 | 52302 | 2484 | - | 2436 | = | 48 | * | (48 | / | 246) | = | 9.36585365 | ||
| 4 | 52305 | 2506 | - | 2485 | = | 21 | * | (53 | / | 246) | = | 4.52439023 | ||
| 5 | 52306 | 2542 | - | 2528 | = | 14 | * | (64 | / | 246) | = | 3.64227641 | ||
| 6 | 52309 | 2559 | - | 2552 | = | 7 | * | (81 | / | 246) | = | 2.30487804 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ruhkala Elementary | 20 | ||||||||||||
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 | 52466 | 2484 | - | 2436 | = | 48 | * | (47 | / | 214) | = | 10.54205606 | ||
| 4 | 52467 | 2510 | - | 2485 | = | 25 | * | (52 | / | 214) | = | 6.07476635 | ||
| 5 | 52468 | 2544 | - | 2528 | = | 16 | * | (51 | / | 214) | = | 3.81308411 | ||
| 6 | 52469 | 2573 | - | 2552 | = | 21 | * | (64 | / | 214) | = | 6.28037382 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ruhkala Elementary | 27 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 14 | 32 | 25 | 20 | 27 | 118.0 | 23.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 41.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 5.6
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 | 12% | 12% | 9% | 12% | 15% |
| 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.
Ruhkala Elementary math proficiency
Zero+ meets standard.
8% less $meal
10% less $meal
6% less $meal
10% less $meal
12% 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.