Portola Hills Elementary (Data source)
Source data for Portola Hills 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 | 1562824 | 2476 | - | 2436 | = | 40 | * | (111 | / | 425) | = | 10.4470588 | ||
| 4 | 1562827 | 2520 | - | 2485 | = | 35 | * | (103 | / | 425) | = | 8.48235294 | ||
| 5 | 1562828 | 2539 | - | 2528 | = | 11 | * | (113 | / | 425) | = | 2.92470587 | ||
| 6 | 1562831 | 2607 | - | 2552 | = | 55 | * | (98 | / | 425) | = | 12.68235293 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Portola Hills Elementary | 35 | ||||||||||||
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 | 48934 | 2486 | - | 2436 | = | 50 | * | (107 | / | 427) | = | 12.529274 | ||
| 4 | 48936 | 2532 | - | 2485 | = | 47 | * | (110 | / | 427) | = | 12.10772833 | ||
| 5 | 48938 | 2538 | - | 2528 | = | 10 | * | (101 | / | 427) | = | 2.36533957 | ||
| 6 | 48940 | 2597 | - | 2552 | = | 45 | * | (109 | / | 427) | = | 11.4871194 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Portola Hills Elementary | 38 | ||||||||||||
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 | 50270 | 2466 | - | 2436 | = | 30 | * | (92 | / | 405) | = | 6.81481479 | ||
| 4 | 50272 | 2521 | - | 2485 | = | 36 | * | (107 | / | 405) | = | 9.51111108 | ||
| 5 | 50274 | 2543 | - | 2528 | = | 15 | * | (103 | / | 405) | = | 3.81481481 | ||
| 6 | 50277 | 2604 | - | 2552 | = | 52 | * | (103 | / | 405) | = | 13.22469132 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Portola Hills Elementary | 33 | ||||||||||||
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 | 50295 | 2477 | - | 2436 | = | 41 | * | (106 | / | 399) | = | 10.89223056 | ||
| 4 | 50296 | 2517 | - | 2485 | = | 32 | * | (92 | / | 399) | = | 7.37844611 | ||
| 5 | 50299 | 2554 | - | 2528 | = | 26 | * | (101 | / | 399) | = | 6.58145363 | ||
| 6 | 50300 | 2613 | - | 2552 | = | 61 | * | (100 | / | 399) | = | 15.28822053 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Portola Hills Elementary | 40 | ||||||||||||
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 | 50488 | 2460 | - | 2436 | = | 24 | * | (90 | / | 386) | = | 5.5958549 | ||
| 4 | 50489 | 2530 | - | 2485 | = | 45 | * | (100 | / | 386) | = | 11.65803107 | ||
| 5 | 50490 | 2553 | - | 2528 | = | 25 | * | (96 | / | 386) | = | 6.21761658 | ||
| 6 | 50491 | 2622 | - | 2552 | = | 70 | * | (100 | / | 386) | = | 18.13471499 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Portola Hills Elementary | 42 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 35 | 38 | 33 | 40 | 42 | 188.0 | 37.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 46.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 28.6
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 | 6% | 7% | 7% | 8% | 11% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Saddleback Valley 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.
Portola Hills Elementary math proficiency
Zero+ meets standard.
4% less $meal
5% less $meal
6% less $meal
8% less $meal
10% 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.