Joshua Elementary (Data source)
Source data for Joshua 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 | 741418 | 2333 | - | 2436 | = | -103 | * | (115 | / | 350) | = | -33.84285708 | ||
4 | 741421 | 2360 | - | 2485 | = | -125 | * | (107 | / | 350) | = | -38.21428563 | ||
5 | 741422 | 2383 | - | 2528 | = | -145 | * | (128 | / | 350) | = | -53.02857133 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Joshua Elementary | -125 |
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 | 23330 | 2326 | - | 2436 | = | -110 | * | (94 | / | 304) | = | -34.01315786 | ||
4 | 23333 | 2367 | - | 2485 | = | -118 | * | (111 | / | 304) | = | -43.0855262 | ||
5 | 23334 | 2393 | - | 2528 | = | -135 | * | (99 | / | 304) | = | -43.96381569 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Joshua Elementary | -121 |
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 | 23793 | 2344 | - | 2436 | = | -92 | * | (100 | / | 299) | = | -30.76923072 | ||
4 | 23794 | 2352 | - | 2485 | = | -133 | * | (79 | / | 299) | = | -35.14046812 | ||
5 | 23797 | 2391 | - | 2528 | = | -137 | * | (120 | / | 299) | = | -54.9832775 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Joshua Elementary | -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 |
||
3 | 23811 | 2327 | - | 2436 | = | -109 | * | (72 | / | 247) | = | -31.77327928 | ||
4 | 23813 | 2382 | - | 2485 | = | -103 | * | (98 | / | 247) | = | -40.8663967 | ||
5 | 23815 | 2401 | - | 2528 | = | -127 | * | (77 | / | 247) | = | -39.59109303 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Joshua Elementary | -112 |
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 | 23988 | 2333 | - | 2436 | = | -103 | * | (74 | / | 263) | = | -28.98098856 | ||
4 | 23989 | 2368 | - | 2485 | = | -117 | * | (93 | / | 263) | = | -41.37262354 | ||
5 | 23990 | 2403 | - | 2528 | = | -125 | * | (96 | / | 263) | = | -45.62737638 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Joshua Elementary | -116 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-125 | -121 | -121 | -112 | -116 | -595.0 | -119.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -104.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -134.0
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 | 89% | 93% | 92% | 92% | 94% |
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, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Joshua Elementary math proficiency
Zero+ meets standard.
82% less $meal
90% less $meal
87% less $meal
88% less $meal
84% 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.