CDS Secondary (Data source)
Source data for CDS Secondary
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 |
||
| 6 | 868100 | 0 | - | 2552 | = | * | (2 | / | 37) | = | ||||
| 7 | 868101 | 0 | - | 2567 | = | * | (8 | / | 37) | = | ||||
| 8 | 868104 | 2377 | - | 2586 | = | -209 | * | (21 | / | 37) | = | -118.6216215 | ||
| 11 | 868105 | 0 | - | 2628 | = | * | (6 | / | 37) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for CDS Secondary | -119 | ||||||||||||
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 |
||
| 6 | 27453 | 0 | - | 2552 | = | * | (1 | / | 54) | = | ||||
| 7 | 27454 | 2378 | - | 2567 | = | -189 | * | (19 | / | 54) | = | -66.49999984 | ||
| 8 | 27456 | 2397 | - | 2586 | = | -189 | * | (32 | / | 54) | = | -111.99999989 | ||
| 11 | 27459 | 0 | - | 2628 | = | * | (2 | / | 54) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for CDS Secondary | -178 | ||||||||||||
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 | 28031 | 2368 | - | 2567 | = | -199 | * | (24 | / | 55) | = | -86.83636356 | ||
| 8 | 28034 | 2403 | - | 2586 | = | -183 | * | (31 | / | 55) | = | -103.14545443 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for CDS Secondary | -190 | ||||||||||||
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 | 28082 | 2393 | - | 2567 | = | -174 | * | (30 | / | 58) | = | -89.99999995 | ||
| 8 | 28084 | 2418 | - | 2586 | = | -168 | * | (28 | / | 58) | = | -81.10344816 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for CDS Secondary | -171 | ||||||||||||
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 | 28261 | 0 | - | 2567 | = | * | (10 | / | 44) | = | ||||
| 8 | 28262 | 2421 | - | 2586 | = | -165 | * | (34 | / | 44) | = | -127.49999988 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for CDS Secondary | -127 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -119 | -178 | -190 | -171 | -127 | -785.0 | -157.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -64.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -250.0
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 | 72% | 88% | 91% | 86% | 83% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Angeles Unified 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.
CDS Secondary math proficiency
Zero+ meets standard.
68% less $meal
83% less $meal
84% less $meal
86% less $meal
81% 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.
District Community Day Schools schools in Los Angeles Unified (8)
| Aggeler Community Day | CDS Elementary | CDS Secondary |
| Dorothy V. Johnson Community Day | Jack London Community Day | Richard A. Alonzo Community Day |
| Tri-C Community Day | William J. Johnston Community Day |