International Polytechnic High (Data source)
Source data for International Polytechnic 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 | 601694 | 2637 | - | 2628 | = | 9 | * | (130 | / | 130) | = | 9.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for International Polytechnic High | 9 | ||||||||||||
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 | 19305 | 2649 | - | 2628 | = | 21 | * | (138 | / | 138) | = | 21.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for International Polytechnic High | 21 | ||||||||||||
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 | 19605 | 2625 | - | 2628 | = | -3 | * | (144 | / | 144) | = | -3.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for International Polytechnic High | -3 | ||||||||||||
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 | 19592 | 2657 | - | 2628 | = | 29 | * | (133 | / | 133) | = | 29.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for International Polytechnic High | 29 | ||||||||||||
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 | 19780 | 2651 | - | 2628 | = | 23 | * | (129 | / | 129) | = | 23.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for International Polytechnic High | 23 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 9 | 21 | -3 | 29 | 23 | 79.0 | 15.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 51.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -20.2
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 | 24% | 27% | 29% | 36% | 32% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Angeles County Office of Education 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.
International Polytechnic High math proficiency
Zero+ meets standard.
17% less $meal
20% less $meal
20% less $meal
29% less $meal
23% 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 Los Angeles County Office of Education (2)
| International Polytechnic High | L.A. County High School for the Arts |