Sierra Vista Elementary (Data source)
Source data for Sierra Vista 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 | 1527069 | 2470 | - | 2436 | = | 34 | * | (70 | / | 285) | = | 8.35087719 | ||
| 4 | 1527070 | 2477 | - | 2485 | = | -8 | * | (63 | / | 285) | = | -1.76842105 | ||
| 5 | 1527073 | 2501 | - | 2528 | = | -27 | * | (65 | / | 285) | = | -6.15789473 | ||
| 6 | 1527074 | 2578 | - | 2552 | = | 26 | * | (87 | / | 285) | = | 7.93684208 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sierra Vista Elementary | 8 | ||||||||||||
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 | 47816 | 2474 | - | 2436 | = | 38 | * | (59 | / | 249) | = | 9.00401606 | ||
| 4 | 47819 | 2528 | - | 2485 | = | 43 | * | (72 | / | 249) | = | 12.43373492 | ||
| 5 | 47821 | 2548 | - | 2528 | = | 20 | * | (53 | / | 249) | = | 4.2570281 | ||
| 6 | 47823 | 2589 | - | 2552 | = | 37 | * | (65 | / | 249) | = | 9.65863451 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sierra Vista Elementary | 35 | ||||||||||||
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 | 49121 | 2476 | - | 2436 | = | 40 | * | (82 | / | 264) | = | 12.4242424 | ||
| 4 | 49123 | 2520 | - | 2485 | = | 35 | * | (61 | / | 264) | = | 8.08712121 | ||
| 5 | 49124 | 2546 | - | 2528 | = | 18 | * | (64 | / | 264) | = | 4.36363636 | ||
| 6 | 49126 | 2612 | - | 2552 | = | 60 | * | (57 | / | 264) | = | 12.9545454 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sierra Vista Elementary | 38 | ||||||||||||
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 | 49143 | 2465 | - | 2436 | = | 29 | * | (72 | / | 286) | = | 7.30069928 | ||
| 4 | 49144 | 2530 | - | 2485 | = | 45 | * | (79 | / | 286) | = | 12.43006992 | ||
| 5 | 49147 | 2545 | - | 2528 | = | 17 | * | (62 | / | 286) | = | 3.68531467 | ||
| 6 | 49148 | 2610 | - | 2552 | = | 58 | * | (73 | / | 286) | = | 14.80419579 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sierra Vista Elementary | 38 | ||||||||||||
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 | 49342 | 2481 | - | 2436 | = | 45 | * | (53 | / | 265) | = | 9.0 | ||
| 4 | 49343 | 2514 | - | 2485 | = | 29 | * | (66 | / | 265) | = | 7.22264149 | ||
| 5 | 49344 | 2565 | - | 2528 | = | 37 | * | (81 | / | 265) | = | 11.30943395 | ||
| 6 | 49345 | 2599 | - | 2552 | = | 47 | * | (65 | / | 265) | = | 11.52830185 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sierra Vista Elementary | 39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 8 | 35 | 38 | 38 | 39 | 158.0 | 31.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 70.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -7.4
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 | 23% | 22% | 23% | 24% | 28% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Placentia-Yorba Linda Unified school district | County of Orange
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 Vista Elementary math proficiency
Zero+ meets standard.
17% less $meal
20% less $meal
17% less $meal
23% less $meal
26% 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.