Desert View Elementary (Data source)
Source data for Desert View Elementary
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 |
||
| 3 | 740727 | 2366 | - | 2436 | = | -70 | * | (117 | / | 473) | = | -17.31501051 | ||
| 4 | 740728 | 2386 | - | 2485 | = | -99 | * | (107 | / | 473) | = | -22.39534876 | ||
| 5 | 740731 | 2419 | - | 2528 | = | -109 | * | (128 | / | 473) | = | -29.49682866 | ||
| 6 | 740732 | 2401 | - | 2552 | = | -151 | * | (121 | / | 473) | = | -38.6279069 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Desert View Elementary | -108 | ||||||||||||
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 |
||
| 3 | 23313 | 2379 | - | 2436 | = | -57 | * | (110 | / | 459) | = | -13.66013071 | ||
| 4 | 23314 | 2390 | - | 2485 | = | -95 | * | (129 | / | 459) | = | -26.69934635 | ||
| 5 | 23317 | 2396 | - | 2528 | = | -132 | * | (113 | / | 459) | = | -32.49673192 | ||
| 6 | 23318 | 2417 | - | 2552 | = | -135 | * | (107 | / | 459) | = | -31.47058818 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Desert View Elementary | -104 | ||||||||||||
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 |
||
| 3 | 23774 | 2387 | - | 2436 | = | -49 | * | (124 | / | 462) | = | -13.15151513 | ||
| 4 | 23777 | 2390 | - | 2485 | = | -95 | * | (122 | / | 462) | = | -25.08658008 | ||
| 5 | 23779 | 2405 | - | 2528 | = | -123 | * | (121 | / | 462) | = | -32.2142856 | ||
| 6 | 23781 | 2415 | - | 2552 | = | -137 | * | (95 | / | 462) | = | -28.17099559 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Desert View Elementary | -99 | ||||||||||||
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 |
||
| 3 | 23793 | 2378 | - | 2436 | = | -58 | * | (95 | / | 437) | = | -12.60869563 | ||
| 4 | 23794 | 2422 | - | 2485 | = | -63 | * | (116 | / | 437) | = | -16.72311211 | ||
| 5 | 23797 | 2407 | - | 2528 | = | -121 | * | (122 | / | 437) | = | -33.78032032 | ||
| 6 | 23798 | 2414 | - | 2552 | = | -138 | * | (104 | / | 437) | = | -32.84210526 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Desert View Elementary | -96 | ||||||||||||
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 |
||
| 3 | 23971 | 2396 | - | 2436 | = | -40 | * | (97 | / | 406) | = | -9.55665024 | ||
| 4 | 23972 | 2390 | - | 2485 | = | -95 | * | (92 | / | 406) | = | -21.52709358 | ||
| 5 | 23973 | 2420 | - | 2528 | = | -108 | * | (118 | / | 406) | = | -31.38916255 | ||
| 6 | 23974 | 2430 | - | 2552 | = | -122 | * | (99 | / | 406) | = | -29.74876841 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Desert View Elementary | -92 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -108 | -104 | -99 | -96 | -92 | -499.0 | -99.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -81.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -117.8
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 | 83% | 89% | 89% | 89% | 93% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lancaster Elementary 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.
Desert View Elementary math proficiency
Zero+ meets standard.
76% less $meal
84% less $meal
80% less $meal
84% less $meal
83% 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.