Big Valley Jr. Sr. High (Data source)
Source data for Big Valley Jr. Sr. 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 | 587317 | 2470 | - | 2567 | = | -97 | * | (12 | / | 56) | = | -20.78571426 | ||
| 8 | 587320 | 2466 | - | 2586 | = | -120 | * | (23 | / | 56) | = | -49.2857142 | ||
| 11 | 587321 | 2464 | - | 2628 | = | -164 | * | (21 | / | 56) | = | -61.5 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Big Valley Jr. Sr. High | -132 | ||||||||||||
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 | 18757 | 0 | - | 2567 | = | * | (8 | / | 32) | = | ||||
| 8 | 18758 | 2471 | - | 2586 | = | -115 | * | (11 | / | 32) | = | -39.53125 | ||
| 11 | 18760 | 2546 | - | 2628 | = | -82 | * | (13 | / | 32) | = | -33.3125 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Big Valley Jr. Sr. High | -73 | ||||||||||||
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 | 19079 | 0 | - | 2567 | = | * | (0 | / | 31) | = | ||||
| 8 | 19082 | 0 | - | 2586 | = | * | (0 | / | 31) | = | ||||
| 11 | 19084 | 2540 | - | 2628 | = | -88 | * | (13 | / | 31) | = | -36.90322574 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Big Valley Jr. Sr. High | -37 | ||||||||||||
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 | 19082 | 2445 | - | 2567 | = | -122 | * | (11 | / | 40) | = | -33.55 | ||
| 8 | 19083 | 0 | - | 2586 | = | * | (0 | / | 40) | = | ||||
| 11 | 19086 | 2492 | - | 2628 | = | -136 | * | (20 | / | 40) | = | -68.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Big Valley Jr. Sr. High | -102 | ||||||||||||
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 | 19230 | 0 | - | 2567 | = | * | (4 | / | 28) | = | ||||
| 8 | 19231 | 0 | - | 2586 | = | * | (10 | / | 28) | = | ||||
| 11 | 19232 | 2516 | - | 2628 | = | -112 | * | (14 | / | 28) | = | -56.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Big Valley Jr. Sr. High | -56 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -132 | -73 | -37 | -102 | -56 | -400.0 | -80.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 31.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -191.0
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 | 71% | 54% | 56% | 57% | 65% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Big Valley Joint Unified school district | County of Lassen
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.
Big Valley Jr. Sr. High math proficiency
Zero+ meets standard.
60% less $meal
38% less $meal
38% less $meal
39% less $meal
58% 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 Big Valley Joint Unified (1)
| Big Valley Jr. Sr. High |