Portola Junior/Senior High (Data source)
Source data for Portola Junior/Senior High
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 |
||
| 7 | 1633753 | 2514 | - | 2567 | = | -53 | * | (44 | / | 109) | = | -21.39449537 | ||
| 8 | 1633756 | 2527 | - | 2586 | = | -59 | * | (29 | / | 109) | = | -15.69724766 | ||
| 11 | 1633757 | 2582 | - | 2628 | = | -46 | * | (36 | / | 109) | = | -15.19266053 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Portola Junior/Senior High | -52 | ||||||||||||
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 |
||
| 7 | 51085 | 2543 | - | 2567 | = | -24 | * | (45 | / | 117) | = | -9.23076922 | ||
| 8 | 51087 | 2539 | - | 2586 | = | -47 | * | (39 | / | 117) | = | -15.66666665 | ||
| 11 | 51088 | 2619 | - | 2628 | = | -9 | * | (33 | / | 117) | = | -2.53846154 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Portola Junior/Senior High | -27 | ||||||||||||
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 |
||
| 7 | 52541 | 2552 | - | 2567 | = | -15 | * | (49 | / | 128) | = | -5.7421875 | ||
| 8 | 52543 | 2548 | - | 2586 | = | -38 | * | (50 | / | 128) | = | -14.84375 | ||
| 11 | 52544 | 2544 | - | 2628 | = | -84 | * | (29 | / | 128) | = | -19.03125 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Portola Junior/Senior High | -40 | ||||||||||||
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 |
||
| 7 | 52613 | 2566 | - | 2567 | = | -1 | * | (46 | / | 123) | = | -0.37398374 | ||
| 8 | 52614 | 2559 | - | 2586 | = | -27 | * | (45 | / | 123) | = | -9.87804877 | ||
| 11 | 52617 | 2562 | - | 2628 | = | -66 | * | (32 | / | 123) | = | -17.17073167 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Portola Junior/Senior High | -27 | ||||||||||||
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 |
||
| 7 | 52793 | 2541 | - | 2567 | = | -26 | * | (50 | / | 129) | = | -10.07751937 | ||
| 8 | 52794 | 2521 | - | 2586 | = | -65 | * | (41 | / | 129) | = | -20.65891471 | ||
| 11 | 52795 | 2569 | - | 2628 | = | -59 | * | (38 | / | 129) | = | -17.37984494 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Portola Junior/Senior High | -48 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -52 | -27 | -40 | -27 | -48 | -194.0 | -38.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -5.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.8
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 | 47% | 48% | 47% | 52% | 47% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Plumas Unified school district | County of Plumas
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 Junior/Senior High math proficiency
Zero+ meets standard.
38% less $meal
40% less $meal
37% less $meal
49% less $meal
44% 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.
High Schools (Public) schools in Plumas Unified (4)
| Chester Junior/Senior High | Greenville Junior/Senior High | Portola Junior/Senior High |
| Quincy Junior/Senior High |