Lindbergh STEM Academy (Data source)
Source data for Lindbergh STEM Academy
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 | 780256 | 2470 | - | 2552 | = | -82 | * | (210 | / | 610) | = | -28.22950819 | ||
7 | 780257 | 2494 | - | 2567 | = | -73 | * | (211 | / | 610) | = | -25.25081965 | ||
8 | 780260 | 2501 | - | 2586 | = | -85 | * | (189 | / | 610) | = | -26.33606553 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lindbergh STEM Academy | -80 |
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 | 24435 | 2489 | - | 2552 | = | -63 | * | (214 | / | 631) | = | -21.36608555 | ||
7 | 24437 | 2485 | - | 2567 | = | -82 | * | (207 | / | 631) | = | -26.90015847 | ||
8 | 24439 | 2515 | - | 2586 | = | -71 | * | (210 | / | 631) | = | -23.62916004 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lindbergh STEM Academy | -72 |
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 |
||
6 | 24935 | 2478 | - | 2552 | = | -74 | * | (214 | / | 600) | = | -26.39333328 | ||
7 | 24937 | 2486 | - | 2567 | = | -81 | * | (197 | / | 600) | = | -26.59499997 | ||
8 | 24939 | 2513 | - | 2586 | = | -73 | * | (189 | / | 600) | = | -22.995 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lindbergh STEM Academy | -76 |
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 |
||
6 | 24958 | 2484 | - | 2552 | = | -68 | * | (216 | / | 618) | = | -23.76699028 | ||
7 | 24960 | 2490 | - | 2567 | = | -77 | * | (215 | / | 618) | = | -26.78802588 | ||
8 | 24962 | 2532 | - | 2586 | = | -54 | * | (187 | / | 618) | = | -16.33980578 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lindbergh STEM Academy | -67 |
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 |
||
6 | 25128 | 2481 | - | 2552 | = | -71 | * | (183 | / | 606) | = | -21.44059406 | ||
7 | 25129 | 2488 | - | 2567 | = | -79 | * | (206 | / | 606) | = | -26.85478545 | ||
8 | 25130 | 2471 | - | 2586 | = | -115 | * | (217 | / | 606) | = | -41.17986792 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lindbergh STEM Academy | -89 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-80 | -72 | -76 | -67 | -89 | -384.0 | -76.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.8
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 | 92% | 93% | 94% | 92% | 91% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Long Beach Unified 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.
Lindbergh STEM Academy math proficiency
Zero+ meets standard.
78% less $meal
81% less $meal
82% less $meal
80% 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.