Littlerock High (Data source)
Source data for Littlerock 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 |
||
| 11 | 615397 | 2506 | - | 2628 | = | -122 | * | (308 | / | 308) | = | -122.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Littlerock High | -122 | ||||||||||||
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 |
||
| 11 | 19678 | 2519 | - | 2628 | = | -109 | * | (318 | / | 318) | = | -109.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Littlerock High | -109 | ||||||||||||
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 |
||
| 11 | 19971 | 2507 | - | 2628 | = | -121 | * | (317 | / | 317) | = | -121.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Littlerock High | -121 | ||||||||||||
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 |
||
| 11 | 19970 | 2479 | - | 2628 | = | -149 | * | (290 | / | 290) | = | -149.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Littlerock High | -149 | ||||||||||||
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 |
||
| 11 | 20152 | 2485 | - | 2628 | = | -143 | * | (305 | / | 305) | = | -143.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Littlerock High | -143 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -122 | -109 | -121 | -149 | -143 | -644.0 | -128.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -80.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -176.8
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 | 79% | 83% | 83% | 85% | 81% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Antelope Valley Union High school district | County of Los Angeles
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.
Littlerock High math proficiency
Zero+ meets standard.
70% less $meal
72% less $meal
70% less $meal
78% less $meal
73% 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 Antelope Valley Union High (8)
| Antelope Valley High | Eastside High | Highland High |
| Lancaster High | Littlerock High | Palmdale High |
| Quartz Hill High | William J. (Pete) Knight High |