Sierra Elementary (Data source)
Source data for Sierra 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 | 1630439 | 2456 | - | 2436 | = | 20 | * | (75 | / | 326) | = | 4.60122698 | ||
| 4 | 1630442 | 2498 | - | 2485 | = | 13 | * | (83 | / | 326) | = | 3.30981594 | ||
| 5 | 1630443 | 2550 | - | 2528 | = | 22 | * | (86 | / | 326) | = | 5.80368096 | ||
| 6 | 1630446 | 2586 | - | 2552 | = | 34 | * | (82 | / | 326) | = | 8.55214723 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sierra Elementary | 22 | ||||||||||||
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 | 50962 | 2456 | - | 2436 | = | 20 | * | (79 | / | 330) | = | 4.78787878 | ||
| 4 | 50965 | 2498 | - | 2485 | = | 13 | * | (79 | / | 330) | = | 3.11212121 | ||
| 5 | 50966 | 2541 | - | 2528 | = | 13 | * | (87 | / | 330) | = | 3.42727272 | ||
| 6 | 50969 | 2584 | - | 2552 | = | 32 | * | (85 | / | 330) | = | 8.24242422 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sierra Elementary | 20 | ||||||||||||
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 | 52422 | 2470 | - | 2436 | = | 34 | * | (73 | / | 313) | = | 7.92971246 | ||
| 4 | 52425 | 2498 | - | 2485 | = | 13 | * | (78 | / | 313) | = | 3.2396166 | ||
| 5 | 52426 | 2528 | - | 2528 | = | 0 | * | (74 | / | 313) | = | 0.0 | ||
| 6 | 52429 | 2549 | - | 2552 | = | -3 | * | (88 | / | 313) | = | -0.84345048 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sierra Elementary | 10 | ||||||||||||
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 | 52488 | 2464 | - | 2436 | = | 28 | * | (77 | / | 304) | = | 7.09210524 | ||
| 4 | 52491 | 2505 | - | 2485 | = | 20 | * | (71 | / | 304) | = | 4.67105262 | ||
| 5 | 52492 | 2545 | - | 2528 | = | 17 | * | (77 | / | 304) | = | 4.30592104 | ||
| 6 | 52495 | 2566 | - | 2552 | = | 14 | * | (79 | / | 304) | = | 3.63815789 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sierra 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 | 52664 | 2481 | - | 2436 | = | 45 | * | (76 | / | 307) | = | 11.14006514 | ||
| 4 | 52665 | 2503 | - | 2485 | = | 18 | * | (73 | / | 307) | = | 4.28013029 | ||
| 5 | 52666 | 2548 | - | 2528 | = | 20 | * | (75 | / | 307) | = | 4.88599348 | ||
| 6 | 52667 | 2568 | - | 2552 | = | 16 | * | (83 | / | 307) | = | 4.3257329 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sierra Elementary | 25 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 22 | 20 | 10 | 20 | 25 | 97.0 | 19.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 34.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 4.4
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% | 11% | 12% | 17% | 13% |
| 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.
Sierra Elementary math proficiency
Zero+ meets standard.
8% less $meal
8% less $meal
10% less $meal
14% less $meal
11% 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.