OCCS:CHEP/PCHS (Data source)
Source data for OCCS:CHEP/PCHS
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 | 1407082 | 2413 | - | 2436 | = | -23 | * | (45 | / | 404) | = | -2.56188117 | ||
| 4 | 1407083 | 2480 | - | 2485 | = | -5 | * | (44 | / | 404) | = | -0.54455446 | ||
| 5 | 1407086 | 2505 | - | 2528 | = | -23 | * | (46 | / | 404) | = | -2.61881188 | ||
| 6 | 1407087 | 2557 | - | 2552 | = | 5 | * | (66 | / | 404) | = | 0.81683168 | ||
| 7 | 1407090 | 2583 | - | 2567 | = | 16 | * | (79 | / | 404) | = | 3.12871286 | ||
| 8 | 1407091 | 2569 | - | 2586 | = | -17 | * | (54 | / | 404) | = | -2.27227722 | ||
| 11 | 1407094 | 2582 | - | 2628 | = | -46 | * | (70 | / | 404) | = | -7.970297 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for OCCS:CHEP/PCHS | -12 | ||||||||||||
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 | 44406 | 2457 | - | 2436 | = | 21 | * | (39 | / | 241) | = | 3.39834025 | ||
| 4 | 44408 | 2460 | - | 2485 | = | -25 | * | (35 | / | 241) | = | -3.63070538 | ||
| 5 | 44410 | 2541 | - | 2528 | = | 13 | * | (34 | / | 241) | = | 1.83402489 | ||
| 6 | 44413 | 2545 | - | 2552 | = | -7 | * | (43 | / | 241) | = | -1.24896265 | ||
| 7 | 44414 | 2595 | - | 2567 | = | 28 | * | (37 | / | 241) | = | 4.29875516 | ||
| 8 | 44417 | 2610 | - | 2586 | = | 24 | * | (53 | / | 241) | = | 5.27800829 | ||
| 11 | 44418 | 0 | - | 2628 | = | * | (0 | / | 241) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for OCCS:CHEP/PCHS | 10 | ||||||||||||
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 | 45568 | 2411 | - | 2436 | = | -25 | * | (35 | / | 318) | = | -2.75157233 | ||
| 4 | 45570 | 2499 | - | 2485 | = | 14 | * | (37 | / | 318) | = | 1.62893081 | ||
| 5 | 45571 | 2493 | - | 2528 | = | -35 | * | (29 | / | 318) | = | -3.19182388 | ||
| 6 | 45573 | 2565 | - | 2552 | = | 13 | * | (31 | / | 318) | = | 1.26729559 | ||
| 7 | 45575 | 2558 | - | 2567 | = | -9 | * | (41 | / | 318) | = | -1.16037735 | ||
| 8 | 45578 | 2596 | - | 2586 | = | 10 | * | (38 | / | 318) | = | 1.19496855 | ||
| 11 | 45580 | 2555 | - | 2628 | = | -73 | * | (107 | / | 318) | = | -24.56289305 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for OCCS:CHEP/PCHS | -28 | ||||||||||||
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 | 45586 | 2432 | - | 2436 | = | -4 | * | (28 | / | 293) | = | -0.38225256 | ||
| 4 | 45588 | 2457 | - | 2485 | = | -28 | * | (31 | / | 293) | = | -2.96245732 | ||
| 5 | 45591 | 2505 | - | 2528 | = | -23 | * | (39 | / | 293) | = | -3.06143345 | ||
| 6 | 45592 | 2540 | - | 2552 | = | -12 | * | (27 | / | 293) | = | -1.10580204 | ||
| 7 | 45594 | 2593 | - | 2567 | = | 26 | * | (28 | / | 293) | = | 2.48464161 | ||
| 8 | 45596 | 2570 | - | 2586 | = | -16 | * | (36 | / | 293) | = | -1.9658703 | ||
| 11 | 45599 | 2570 | - | 2628 | = | -58 | * | (104 | / | 293) | = | -20.58703069 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for OCCS:CHEP/PCHS | -28 | ||||||||||||
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 | 45769 | 2392 | - | 2436 | = | -44 | * | (17 | / | 216) | = | -3.46296293 | ||
| 4 | 45770 | 2468 | - | 2485 | = | -17 | * | (26 | / | 216) | = | -2.04629629 | ||
| 5 | 45771 | 2506 | - | 2528 | = | -22 | * | (18 | / | 216) | = | -1.83333333 | ||
| 6 | 45772 | 2532 | - | 2552 | = | -20 | * | (24 | / | 216) | = | -2.22222222 | ||
| 7 | 45773 | 2590 | - | 2567 | = | 23 | * | (31 | / | 216) | = | 3.30092591 | ||
| 8 | 45774 | 2590 | - | 2586 | = | 4 | * | (24 | / | 216) | = | 0.44444444 | ||
| 11 | 45775 | 2561 | - | 2628 | = | -67 | * | (76 | / | 216) | = | -23.57407402 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for OCCS:CHEP/PCHS | -29 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -12 | 10 | -28 | -28 | -29 | -87.0 | -17.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 30.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.4
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 | 20% | 22% | 21% | 30% | 27% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Orange County Department of Education 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.
OCCS:CHEP/PCHS math proficiency
Zero+ meets standard.
16% less $meal
18% less $meal
16% less $meal
27% 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.
Opportunity Schools schools in Orange County Department of Education (1)
| OCCS:CHEP/PCHS |